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.
DIY: How to make a cloud! Wish I had know this when Nadja asked for a cloud for Xmas, we only came up with a dry ice version. She still has a jar of "condensed" cloud though. The cloud can be suspended from ceiling with light behind