I started this post with the "duct tape dressform" and pretty much the same link.... I tried it when I got home, and getting covered in 7 rolls of duct tape is not as much fun as it sounds. WEAR A TSHIRT.... I couldn't bend my knees very well, but the tape fit like a glove, even outlining my little "muffin top", which I thought was pretty cruel...
When my mom went to cut me out I cried, because I mean, scissors and sensitive back skin don't mix. I'm like, wow, this was my bright idea to just give someone the opportunity to shove a pair of scissors into my spine, but she didn't of course... She did cut my bra in half...She and my friend are like, a razorblade would work better, and I had to ixnay that idea all the way..
When the form was off of me, it looked great, like a piece of duct tape armor, I stitched it together a little on my euro-pro, and then we ductaped the back seam, and a friend of mine made the perfect cardboard circle, to fit in the bottom. I stuffed mine with old clothes, sheet sets that I don't use, plastic bags, 2 shower curtains.. pretty much anything, and it looks great!!! It weighs nearly 50 lbs.
Oh, and I put a wooden hanger in the top for shoulder stability, and it makes it easy to hang and work on.