I have done this many years ago using a medical casting material. I did have problems keeping a full erection but the resulting plaster of Paris model was passable if not fully representational of my erect penis at that time.

I definitely could not do it now without help from another but I could offer help myself if anyone near to me wanted to try.

I'll agree with the others here, keeping rock hard for it is tricky, unless you have a pill. I used a cock ring, and had to keep stimulating myself (kinda forced to pop in the middle of it all, but gladly, not when I was casting, which was fairly quick). The laying down idea is brilliant, and I think it's probably endorsable. If you can do it with help, great! I was single at the time, and had gotten this weird fetish for what my dick must feel like to a receiver. Needless to say, I went on to... ahem, look into that. But being single and solo, it was some piece of work, getting it right. I watched a YouTube video, too, I think. Lost track of my ol' dick. I prefer to think he's out there getting soaked in pussy, and penetrating the occasional ass I was actually thinking recently of doing it again, with help this time.

An artist friend of mine cast my penis,she wrapped it in a very fine gauze bandage and then used plaster of paris,I kept a hard on until it had set-only about 5mins.then let my cock go soft,she then used the cast as a mould to fill with solid latex to make a replica of my cock,it worked realy well!

And don't ya want one that ejaculates a fluid that you like

i have made a couple of clone-a-willy's and they turned out ok. Couple of pointers that may help.
1) if u have access to viagra or cialis, use it
2) get help. mixing the gel and pouring it in the tube, then getting your hard cock in is difficult in under 2 mins.
3) wear a cock ring
4) i tried it the way they told me to with ok results twice. I then tried it with the bottom cut outta the tube , me lying down with my dick in the tube, then pouring the mixture into the tube. It did turn out alot better than the first few.

check my page for more pics.

[deleted image]
[deleted image]
[deleted image]

good question. I saw a shoe on TV a while ago going through the whole process. They did a woman' vagina and a guy's cock. Your right, it was difficult for the guy to keep his erection even though he had "help" from a girl beforehand. He stayed hard for the time required but said it was difficult. My suggestion would be to take an "erectile dysfunction" tablet before hand. Just my two cents worth.

Good luck!!