Bomomo

Bomomo is a drawing toy with strange generative brushes. Pick a quirky brush and draw, and the strokes bloom into patterns instead of simple lines. Each brush behaves differently, so experimenting is the whole game: one might spin out spirals, another scatter shapes. When you are done, you can save high-quality pictures of your work. It was created by Philipp Lenssen in 2008, and it is still delightful, a reminder of how playful the early interactive web could be. There is nothing to learn and no wrong way to use it, which makes it a lovely way to spend five minutes. Try each brush on a blank canvas, then combine two or three for something layered. It is fun for adults and kids alike, and it needs only a mouse or finger. If you enjoy generative art, Silk and Tixy are on our list too.