Click the green flag to generate an endless series of space invaders, like in the classic 70s/80s video game! You can select the number of pixels in the space invader, but after a few invaders are generated, it'll go back to random.
I saw someone else's space invader generator long ago, and thought about how I'd make one. I love the way these random forms seem to take on character -- some feel sinister, or bizarre, or playful.