I did tape baby dolls with a high school class, the boys did not bat
an eye about this project (some folks worry that boys won't do "doll"
projects, but I have never had a problem with the students over this).
I blogged about the project here:
http://rubyreusable.com/artblog/?p=303
I also use stuffed animals as molds (cheap at the Goodwill if you
don't have any at home to use), I use tape and plastic bags instead of
plastic wrap, which is more complicated but more colorful, I posted
pics of my dogs and cats on flickr:
http://www.flickr.com/photos/rubyreusable/sets/72157603844178747/
Good luck!
Ruby Re-Usable, rostered Washington State Arts Commission teaching artist
rubyreusable@gmail.com
http://rubyreusable.com/artblog/