I tried the clone a bone kit, or something, a while ago. I was going to make one for my girlfriend when i went away for a long time. the kit came with enough mix for the mold for three tries, and i couldnt get it. The temp of the water you mix it with is CRUCIAL. too hot, and it gelled instantly and didnt mold right. too cold, and it took forever to gell and I lost my wood. she wasnt much help. It cost nearly a c-note, so I was unhappy, but i might buy some mix and try again someday. Just make sure you have a thermometer for the water, but be advised, its not easy, and you WILL need help, which is wierd.