Clone-A-Willy Kit Review: How to Life Cast a Penis in Silicone!

My results with the glow-in-the-dark green Clone-A-Willy kit from Empire Labs!
Imagine encountering (or creating) your dream cock, and how lovely it would be to customize a copy of it.

You pick a part­ner shape, cast it in body-​safe and glow-​in-​the-​dark sil­i­cone, and you make it vibrate! That's all with­in reach with the Clone-​A-​Willy kit by Empire Labs.

It con­tains every­thing you need to clone a cock of aver­age size in the com­fort of your own home. It's an idyl­lic con­cept for a part­ners' night in, and it's not too good to be true — if you learn from my boyfriend's and my mis­takes when life cast­ing his penis into a dildo.

We made FOUR ATTEMPTS before we got a func­tion­al mold. Our trou­bles were part­ly because his penis is well above aver­age girth, so we had to mod­i­fy the instructions.

Find out what went wrong for us, what went right, and action­able tips for a suc­cess­ful sil­i­cone penis life­cast and DIY dil­do at home.

Boyfriend holding a glow-in-the-dark silicone replica of his penis. In front of him is the glowing Clone-A-Willy packaging.

In This Clone-A-Willy Kit Review and Troubleshooting Guide

Click to jump to a sec­tion — I know it's a super long post!

What Comes With the Clone-A-Willy Kit by Empire Labs

Clone-A-Willy at-home silicone dildo casting kit: packaging, glow powder, molding powder, thermometer, tongue depressor, silicone, catalyst, plastic bullet vibrator
Clear packaging tube

The default con­tain­er for the Clone-​A-​Willy kit com­po­nents stands about 11 inch­es tall and 2.5 inch­es wide. Most penis-​owners will have enough room in the tube to make a mold of their penis.

Unfortunately, my boyfriend's penis was too big for the includ­ed Clone-​A-​Willy kit tube. Remember: we need­ed some extra room for the mold­ing com­pound to form "walls" and main­tain its shape around the thing we cast. If the penis (or what­ev­er else you're "cloning") is wider than 1.75", you may need to find a big­ger container.

Penis casting instructions

Mold mak­ing sounds sim­ple, but it's not nec­es­sar­i­ly easy — so many things can go wrong. The kit includes basic instruc­tions and trou­bleshoot­ing tips. This Clone-​A-​Willy review will go into where they could have elab­o­rat­ed more.

Alginate powder

This algae-​based mold com­pound is squishy, non-​toxic, and flex­i­ble. There's just enough for one Clone-​A-​Willy attempt, so you may want to con­sid­er buy­ing more — espe­cial­ly with a penis too big for the Clone-​A-​Willy kit's includ­ed tube. I'll elab­o­rate on that later.

Clone-A-Willy alginate, glow-in-the-dark pigment, silicone, catalyst

Cold algi­nate takes a longer time to set, while warmer algi­nate solid­i­fies quick­ly. You want a nice bal­ance between work­ing time and, well, how long you have to keep a penis erect in goo.

Liquid silicone

Silicone is body-​safe, easy-​to-​clean, and prac­ti­cal­ly non-porous — all the good stuff.

Catalyst for curing

Self-​explanatory. The sil­i­cone includ­ed in the Clone-​A-​Willy kit won't start solid­i­fy­ing until you mix the two liquids.

Pigment powder

This phos­pho­res­cent pig­ment is includ­ed if you got the glow-​in-​the-​dark Clone-​A-​Willy kit as I did.

Popsicle stick

Super use­ful for scoop­ing out every last bit of liq­uid from the jars.

Battery-​powered bullet

Make your sil­i­cone penis life-​cast vibrate. It's def­i­nite­ly buzzy and old-​school, though.

Mixing bowl, dental alginate, measuring cup, trimmed Clone-A-Willy tube, mixing spatula, bullet
You may have noticed that I trimmed down the includ­ed Clone-​A-​Willy tube and marked it at the top. However, I didn't use that for our final, actu­al­ly suc­cess­ful mold and cast.

What Else You'll Definitely Need to Make a Silicone Penis Cast

Mixing bowl and cup

You'll be mak­ing two mixtures:

  • The mold­ing compound
  • The liq­uid silicone

For the for­mer, I rec­om­mend a smooth, wide bowl or cup. A pour­ing spout would be a bonus. For the lat­ter, some­thing small­er and dis­pos­able, like a stereo­typ­i­cal American red solo cup, is ideal.

We're work­ing with a vis­cous flu­id that sticks to the cup's sides, so I don't want to waste sil­i­cone. (We bare­ly had enough to make a copy of my boyfriend's penis!)

Something to stir with

For the algi­nate mold­ing com­pound, I high­ly rec­om­mend a whisk for smooth mix­ing. For the sil­i­cone, use the includ­ed pop­si­cle stick.

Measuring cup

You'll need to mea­sure about 1 3/​4 cups of water to mix with the algi­nate mold­ing pow­der included.


For trim­ming down the tube and cut­ting a card­board "base" for align­ing the bullet.

A timer

You're read­ing this blog post online, so pre­sum­ably, you know how to find a timer.

[Browsing on a desk­top? Click to jump back up and see addi­tion­al rec­om­mend­ed mate­ri­als!]

Optional Things to Have Handy for Best Clone-A-Willy Results

Something (or someone) to keep you hard

Sex with lumpy mashed pota­toes prob­a­bly doesn't sound sexy, does it? Remember: the penis has still to stay hard and sta­tion­ary while the algi­nate sets.

It should be erect and ready-​to-​go as soon as the mold­ing gel is mixed. Your best bet is to start some­thing sexy, jack off while some­one (or some­thing) else stirs, then GO TIME.

Additional alginate for second (or third, or fourth…) attempts

You could get single-​use pack­ets con­tain­ing just enough for one more mold from the Clone-​A-​Willy brand, or shop else­where entire­ly and get A LOT more pow­der for not much more mon­ey. I opt­ed for the latter.

Smooth, hard work surface

Mold mak­ing and cast­ing are MESSY. You most like­ly WILL spill some gooey liq­uid algi­nate, which is hard to get out of clothes and carpet.

Marker or some masking tape

If you're trim­ming down the tube, it helps to mark where you're going to cut. Ideally, it would be lev­el so you can angle the bul­let properly.

Small piece of cardboard

It holds the bul­let in place at the top of the mold while the sil­i­cone cures.

Fine-​grit sandpaper

If you have air bub­bles in the algi­nate mold mix, that may result in unsight­ly bumps on your cloned willy. For pure­ly cos­met­ic rea­sons, you may want to sand out some of the blemishes.

Basic Instructions for Making a Silicone Cast of a Penis

The guide includ­ed in the Clone-​A-​Willy kit makes it sound decep­tive­ly sim­ple. The mak­ers have a whole-​ass demo video about that, so this sec­tion will be more about my boyfriend's and my per­son­al experience.

Making an Alginate Mold of a Penis

  • Get some water that's just under 90 degrees Fahrenheit. 
    • The instruc­tions say to go just over, but I pre­fer to go a lit­tle under for a longer work­ing time.
Clone-A-Willy Kit Review: How to Life Cast a Penis in Silicone! 1
  • Mix the water and algi­nate in less than 30 seconds. 
    • The instruc­tions say lumps are okay — and they are, to an extent, but it's best to use a whisk and stir well.
  • Pour it into the tube. Go fast, but be care­ful not to get air bub­bles in.
  • Stick the hard penis or mod­el in there ASAP, and let it sit for 2 minutes. 
    • THE WORST PART. My boyfriend was SO HAPPY when we final­ly got a func­tion­al mold!
  • Slowly pull the cock or mod­el out once the gel has solidified 
    • Going flac­cid helps a lot. Unfortunately, the process of pulling out of the algi­nate caused suc­tion, which got him hard­er again. I quick­ly thought of an unsexy face twitch and dinosaur dance to do.
    • You can wait for two hours for the mold to dry a lit­tle bit and get more detail.
Mixing pigment with silicone to DIY a glow-in-the-dark silicone dildo at home

DIY Casting a Dildo in Silicone

  • Mix the sil­i­cone and cat­a­lyst (and pig­ment, if applicable).
  • Pour slow­ly into the mold.
  • Wait 24 hours for the sil­i­cone to ful­ly cure.
  • Unmold your creation!

What to Do if Your Clone-A-Willy Mold Doesn't Set Properly or Isn't Up to Your Standards

That's a gen­uine pos­si­bil­i­ty. Again, my boyfriend and I went through the mold­ing process FOUR times before we got one we liked. Here's a run-​down of how we fucked up.

Clone-A-Willy Kit Review: How to Life Cast a Penis in Silicone! 2
The water bot­tle my boyfriend and I end­ed up using to make our Clone-​A-​Willy mold — and rem­nants of the pre­vi­ous algi­nate mold we fucked up.
Clone-​a-​willy mistake #1: the water was way too warm

My boyfriend went way over 90 degrees, which made the algi­nate set way too fast before we could even get his penis in the tube. It also didn't help that he wasn't jack­ing off while I was stir­ring, so we had to get him hard.

If you messed up with your Clone-​A-​Willy kit, and you don't have any mold­ing pow­der left, don't fret! You can eas­i­ly order anoth­er bag of alginate.

I'm not par­tial to any par­tic­u­lar brand. You could buy some from Clone-​A-​Willy, but I chose a cheap­er and fast-​setting one that's typ­i­cal­ly used for mak­ing den­tal molds. It cost me about $15.

Mistake #2: penis too big for clone-​a-​willy kit?

From that point on, I was the one to check the tem­per­a­ture and make sure it was slight­ly below 90 F. And still, we expe­ri­enced an issue that nei­ther of us anticipated.

It's not that it didn't fit, but the algi­nate mold left behind was so thin and flim­sy that it wouldn't hold up as he pulled out. Ope. Back to Square 1.

Mistake #3: air bubbles and lumpiness

We did the math, weighed our algi­nate with a food scale, mixed it, and filled up a reusable water bot­tle instead of the default Clone-​A-​Willy tube.

At the time, though, I didn't yet know that Failure #1 was due to warm water, so I was super para­noid about not hav­ing enough work­ing time. I was hasty AF with the mixing.

And like, yes, the instruc­tions say that some lumps in your algi­nate are fine, but there are lim­i­ta­tions to that. Having some unmixed pow­der means that there's trapped air that may arise, and there was a bii­i­i­ig air bub­ble near the tip of the mold. No bueno.

Clone-A-Willy Kit Review: How to Life Cast a Penis in Silicone! 3

Clone-A-Willy penis casting kit attempt #4: SUCCESS!

We learned from our mis­takes. Here's a recap of what we did dif­fer­ent­ly to have a suc­cess­ful Clone-​A-​Willy penis algi­nate mold:

  1. Use water slight­ly below 90 F
  2. Have the hard cock ready to go right away
  3. Use a water bot­tle to make the mold.
  4. Stir with a whisk instead of a fork 
    • Just keep your motions hor­i­zon­tal and do not mix in any addi­tion­al air!
Pouring glow-in-the-dark silicone into an alginate mold of a penis

The rest of it was most­ly smooth sail­ing. I mixed the sil­i­cone, poured it in a small stream, and wait­ed 24 hours before pulling.

The only prob­lem with it was that the bul­let migrat­ed a lit­tle and angled itself. If I were to do anoth­er Clone-​A-​Willy attempt, I would omit the vibra­tor. I'm not big on vibrat­ing dil­dos any­way. The bullet's align­ment adds anoth­er lay­er of poten­tial prob­lems, espe­cial­ly if some­one put their penis in at an angle.

And here's the result of using the Clone-A-Willy kit with my boyfriend!

During the day
Clone-A-Willy Kit Review: How to Life Cast a Penis in Silicone! 4
Clone-A-Willy Kit Review: How to Life Cast a Penis in Silicone! 5
While glowing

Overall, the sil­i­cone cast itself is beau­ti­ful! The tip has lots of skin-​like detail­ing, and the phos­pho­res­cent pig­ment is SUPER bright and concentrated!

Here's a pic­ture of the glow-​in-​the-​dark Clone-​A-​Willy kit result next to some oth­er glow­ing dil­dos and minis.

Glow-in-the-dark silicone dildos
Left to right: Blush Neo Elite GLOW with­out balls (orange), with balls (green), my boyfriend's Clone-​A-​Willy repli­ca, and some Uberrime tee­ny weenies

My Verdict on the Clone-A-Willy Kit by Empire Labs

On paper, the Clone-​A-​Willy kit can be an afford­able and quirky couple's night in. In prac­tice, it's total­ly nor­mal not to get it right the first time. Keep that in mind, when bud­get­ing costs and time; be lib­er­al with your esti­mate about how long it will take.

And this project was not my first time mak­ing an algi­nate mold! I had enough expe­ri­ence to know that sculp­ture is often much more dif­fi­cult than it sounds, but not enough to know all the ways that would manifest.

While you don't need extra algi­nate on hand, remem­ber that you have options if you mess up your Clone-​A-​Willy mold. This pint-​sized pack­age of apack­age con­tains just enough to be an afford­able dildo-​casting starter kit, but it's not comprehensive.

Clone-A-Willy Kit Review: How to Life Cast a Penis in Silicone! 6

The fun doesn't stop there! Consider fists, vulvas, and dream dicks sculpted out of clay, too.

If learn­ing how to DIY cast a sil­i­cone dil­do at home seri­ous­ly inter­ests you, con­sid­er invest­ing. As tedious as the Clone-​A-​Willy mold­ing and cast­ing process was, it was also ful­fill­ing. I'm look­ing for­ward to cloning a vul­va and fist, too. With the amount of mate­ri­als I'd need, it may be cheap­er in total to shop for mate­ri­als out­side of what's avail­able in the kits.

For a one-​off DIY custom vibrating silicone dildo, though?

Check out all the Clone-​A-​Willy col­ors available:

  • Hot pink
  • Neon pur­ple
  • Flat black
  • Deep skin tone
  • Medium skin tone
  • Light skin tone
  • Glow pink
  • Glow green
  • Glow blue
  • Light skin tone with balls
  • Alginate mold­ing pow­der refill

See My Mini-Reviews of Other Glow-In-The-Dark Dildos, Too!

Amazing Glow-In-The-Dark Dildos under blacklight

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14 Responses

  1. D. Dyer says:

    I am def­i­nite­ly excit­ed about try­ing this with one of my part­ners but even more excit­ed about work­ing up to mak­ing a fist eventually.

  2. Jordan says:

    I used the clone a pussy with the pock­et pussy kit and it’s so much fun! I did it with my part­ner and even the process of mak­ing it was hot af, a lit­tle messy but still fun. I also love how you can use the kit again. Definitely a fun, inter­ac­tive, and sexy product.

  3. Trix says:

    I didn’t real­ize cool­er algi­nate buys more time…it sounds coun­ter­in­tu­itive to some­one who’s nev­er used it! I always won­dered why peo­ple didn’t wear cock rings while get­ting cast, so know­ing a shorter-​lived erec­tion helps with removal is good to know…

  4. cherry says:

    Hi–I found your blog and thank you so much for all the infor­ma­tion. Hopefully it'll help me and my part­ner. Question can you let me know what den­tal algi­nate you used? It seems some algi­nates aren't sil­i­cone friend­ly. Also how is the clone hold­ing up a year lat­er? Hopefully vibed restocks soon. Thank you!

  5. Rob says:

    My wife com­ment­ed on how nice and thick your bf. is and how good his defined coron­na must feel. Were still look­ing for some­one who would be open to pro­vid­ing my wife a copy of there man­hood. Seems to us this is some­thing alot of cou­ples would like to try with all the covid fears and pos­si­bil­i­ties of std's and oth­er dis­eases. Also a way for her to expe­ri­ence oth­er men with­out the pos­si­ble rela­tion­ship issues of involv­ing real men.

  6. Rob says:

    Awesome review of the Clone a willy kit. Would love to have a copy of your bf. to sat­is­fy my wife with. Do you know of any­one out there who could do a cast of them­selves , for a fee of course ? We have dil­do copies of porn stars she enjoys but hav­ing a copy of an every­day per­son to screw my wife and my wife telling them how good they felt inside her would be awesome!

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