Tie dye with Sharpies-make sure the Sharpie dye can be heat set. It wd be a disaster if the Sharpie ink ran and got on other clothes in the washing machine. Need to add label, "HAND WASH SEPARATELY IN COLD WATER.
Bowls made of confetti! Great recycling art project--save all those leftover paper scraps (put in small bowls at each table). Collect a bunch and have the kids cut them up; Then make bowls made from confetti.