Recently, I spent a weekend at AS220. One person I visited there was Mitch Altman, the creator of the TV B-Gone. It looks like his Artist in Residence is over, but he wasn’t leaving without making a bunch of these cool “Trippy RGB Waves”
Imagine a bunch of little lights (maybe 20 or 40 of them), on a table, each about the size of a chess piece. Each is independent of the other. You arrange them around on the table any way you want. Each one continually slowly changes colors on its own. When you wave your hand over them, it creates waves of colors that follow your hand.
Read more about Mitch Altman’s Trippy RGB Waves [click on “maker faire” and scroll down]