We picked up this neat Spin Art kit from one of those cheap stores for just a few euros here in The Hague, The Netherlands. The kids love it (and I do too).
Here are some of the results. Along with a painting she did of a My Little Pony jumping on a trampoline. I love kids imaginations.
We also did some of these Spin Art paintings last year where we added some glitter in while they were spinning. Nice fireworks effect!