MASTURBATION MAY. SHH... JUST UNLOCK YOUR PLEASURE. 40% Off Bestsellers. + Up to 5 Free Toys on $99+. 
Willy Moulding Kits
Discover the art of intimate self-expression with the new Willy Moulding Kits collection. These all-in-one, body-safe silicone kits let you create an exact replica of a penis or pussy with every detail captured for a truly personal experience. Whether you're crafting a playful gift, preserving a private keepsake, or simply exploring your sensual creativity, these pussy and willy molding kits make it easy, fun, and unforgettable.
How a Penis Molding Kit Actually Works
The process is simpler than you'd expect. Each kit includes molding powder, a mixing tube, and skin-safe silicone - everything you need from start to finish. Active time runs about an hour, plus an overnight cure. The result is a soft, flexible replica built to exact dimensions.
Here's what a session looks like:
- Mix the molding powder with water at the temperature specified in your kit
- Insert the erect penis and hold steady for 60-90 seconds while the mold sets
- Remove carefully, then mix and pour the silicone into the mold (drop in a vibrator if your kit includes one)
- Leave it overnight to cure - usually 8 to 24 hours
The molding stage is fast - you only get 60-90 seconds of working time before the mixture sets. Preparation matters here. Read the instructions fully before opening anything, measure your water temperature precisely, and have every component within arm's reach. A little prep makes the difference between a perfect cast and a do-over.
And honestly, the process itself is half the fun. These kits make for a memorable couples project - there's something playful about doing this together, and the laughter that happens mid-mold is part of the experience.
Who a DIY Dildo Kit Is For
More people than you'd expect. The obvious case is long-distance couples - a custom replica keeps something real on hand when a partner isn't around. But the appeal goes wider: people use them to memorialize a body, create a custom-fit toy that matches their exact preferences, or just have a surprisingly fun Saturday night project that ends in something they'll actually use.
Experience level isn't a factor. The process is designed to be followable by anyone. The main skill involved is patience - rushing the molding stage is the most common reason for a second attempt.
Shop by Kit Type
Find the right kit with the b-Vibe range:
- Vibrating Kits - Includes an insertable bullet vibrator that becomes part of the finished dildo. Adds motor-driven sensation to the custom shape, no extra setup required.
- Non-Vibrating Kits - Classic molding kit with powder, silicone, and mixing tube. Everything you need, nothing you don't.
- Glow-in-the-Dark Kits - Same casting process, finished silicone glows in the dark. A fun twist on the standard approach.
- Pigmented Silicone Kits - Multiple skin-tone options so the finished replica matches the original as closely as possible.
- Refill Sets - Extra molding powder and silicone for a second attempt or a fresh cast. Smart to grab if it's your first time.
Frequently Asked Questions about Penis Molding Kits
How do I actually use a penis molding kit?
Mix the molding powder with water at the temperature specified, insert the erect penis, and hold it steady for 60-90 seconds while the mixture sets. Remove carefully, then mix and pour the silicone into the mold. Leave it overnight to cure - usually 8 to 24 hours. Read the full instructions before you start, not halfway through. Preparation is the whole game with these kits.
What's the difference between a vibrating and non-vibrating kit?
A vibrating kit includes a small bullet vibrator that you insert into the poured silicone before it cures. It becomes a permanent part of the finished dildo. A non-vibrating kit produces the same realistic replica, just without the motor. The molding process is identical for both.
Is the silicone safe to use?
Quality kits use body-safe, skin-safe silicone - non-porous, phthalate-free, and made specifically for intimate use. Always check the materials listed before buying. Every kit at b-Vibe lists full specifications so you know exactly what's in the box.
What if the mold doesn't turn out right on the first try?
It happens, usually because the water temperature was off or the erection wasn't held steady long enough. Most brands sell refill sets with extra powder and silicone so you can try again without buying a full kit. Treat the first attempt as practice - second attempts almost always come out cleaner because you know what to expect.
How long does the whole process take?
Active time runs 30-45 minutes for mixing, molding, and pouring. Curing takes 8-24 hours depending on the kit, so plan to start in the evening and check in the morning. You don't need to be present for the cure - just patient.
“Bought it from a local shop and it’s great for the price and the hat it does! only problem is I wish they had a changeable head as it’s a little for my taste overall love it. Greta depth great spe...”
Rain
“This is a great fisting dildo. Even though it is large it gives you the choice of how much you can take. Start off slow and advance to take it all. The texture is smooth and holds lube well. The sucti...”
Adam
“I love it just the right side good for sucking and for fucking my partner and I are having a blast”
Peter B.
“After 15 years with my wife experimenting with every brand on the market including a very expensive one we found it. She closed her eyes and smiled. We got the 7” in brown one suggestion is if they ...”
E. W.
“Male reviewer of the 9" Slip Skin "Girthy". It is a very detailed, life-like and quality made toy. The texture of the head and pliable skin is extremely realistic. Proportionally though...”
DS
“I bought the smallest size which is the 6" in the color cream. It feels nice to touch and also looks great, so there is no problem with that. The length was also about right, but the size of the ...”
BK
“We purchased the 9” girthy to go with our 10” curvy. LOVE them both so much! Worked perfectly with my wife’s vac-u-lock harness and gave me the most incredible and amazing orgasm- Very lifelike ...”
Wife
“This thing feels pretty good. If the head were more like the head of the 9" girthy, which is a bit softer, and had the bulge in width in the middle it would be perfect. That is why it only gets 4...”
John E.
“So realistic, super soft, perfect shape, and appearance. I got the 6, 8, 9, and 10 curved. You really need to check it out. Highly recommended.”
CM.
“I love riding this thing. My wife thinks it's too big. I think it's just right. The way it widens in the middle and then tapers toward the base is a nice touch. It's heavy enough so tha...”
John
“Really enjoy the 9" girthy slipskin dildo, but I wanted that curve to hit the right spot. The 10" curvy is nice, but I wish it had just a little more girth and that the head was a little sof...”
John
“A lot of fun times this far I should say lol no regrets, I wish the curve would restock to purchase that one next in another color.”
Jenicia W.
“Now I know what it's like without having to break some guys heart.”
Lane
“Now I know what it's like without having to break some guy's heart.”
Lance M.
“Best realistic anal dildo ever! I bought the 8", 9" and 10" curvy sizes. My partner uses the 8" size with her strap on for pegging me. She can thrust at her hearts desire and it fe...”
Tom
“If you’re looking for the next step up in your collection to start pushing your limits, I cannot recommend this enough. With the head’s max diameter of 2. 7”, you feel delightfully full when it...”
Robert N.
“Like a cone, it is easy to work up to it with the gentle increase in girth. Very filling and exciting, and very tempting to keep trying to take it all.”
Colin
“Im experienced with large anal play but this was a bit of a challenge at the start. Really liked it once I got stretched out enough to take it all.”
Allen R.
“I kept forgetting to leave a review, but I've had mine about a year now. So it's been long enough to say this was a solid purchase. When I first got mine (The 6. 5" curvy mocha) I was...”
Leah H.
“I really enjoyed this but the reason for the 4 star is that its not exactly hands free which is a bummer but dam does it feel great though. Gotta come up with something to keep it stationary ????”
Doug M.
“Best large dildo on Earth! I have a LOT of the most realistic toys that a person can buy and this is by far my favorite big one for anal. It's in a league of is own. Love the shape of the harder ...”
Brad T.
“Most realistic curved dildo I've ever used! I will definitely be getting more very soon :)”
Brad T.
“I’m not one to leave reviews but sheesh! My partner loves it! She says it feels like the real thing and she honestly wouldn’t be able to tell the difference, especially when warmed up first. Huge ...”
Prefer s.
“Ah so this was a little bigger than expecting…wife was more than a little surprised…going to need some time and the right night. Good if you want something very large.”
Trip t.
“Still trying to fully insert, but I think it’s gonna be great.”
Jillian R.
“Wow! It's so much bigger than I thought. Can't wait to get this one in. It feels so soft and just the right amount of flex. But, I still have a little ways to go before my ass is ready for t...”
John E.
