We've tried many different kinds of spin art -- with old record players, paper plates, and even a battery-powered spin art machine -- but I believe that my favorite way to do spin art is with a salad spinner.
We tried both watercolor and tempera, and I like the tempera better because it's more dynamic and shows more of the movement of the paint. We used primary colors this week with some purple glitter on cut out squares of construction paper and mat board.
The one above looks to me like some winged creature flying high up into the cloudy sky.