I attended the Mountain View Elementary School Art Fair (Ferndale, Washington) last week and set up a fun sculpture at my book table... styrofoam squares, with pipe cleaners, buttons, scraps, sequins, and so on. We used up every last piece of everything. I taught at Mt. View back in the 70s so find it a good place to volunteer when I can. Enjoy the pictures!!
PS This activity is found in Great American Artists for Kids and is an enjoyable sculpture activity based on Alexander Calder's famous stabiles (which are "standing mobiles").