I found this process on a zentai suit website. It is for making your own custom dress form that is a (for all intents and purposes) copy of your own body.

Basically you put on some thin, tighter fit clothing that you don't mind destroying. You then have a friend that owes you a favor start covering you in duct tape from head to foot. Well, we went foot to head. Then after you are all taped up, your friend then very carefully cuts you out of it. I let mine dry out over night as the clothing underneath was soaked. Then tape the cuts back together and fill with stuffing.

After doing the process I have learned some tricks, but overall I think it's a pretty great idea
-be sure and have a lot of vertical running strips so that the seams don't pull apart with the weight of gravity
-be sure that EVERY part of you is covered with clothing. especially that very sensitive skin on the underside of your upper arm. BELIEVE ME ON THIS ONE! :)
-take your time, especially when taping back together and stuffing. make sure that the places you are stuffing look right before you get too far up the body and can't go back.

and then once you're are all taped up, make sure and do a photoshoot in a matching freight elevator:

people.tribe.net/c9b81d48-...669/photos