SwarmSketch

SwarmSketch is an ongoing online canvas that explores the possibilities of distributed design by the masses. Each week it randomly chooses a popular search term which becomes the sketch subject for the week. In this way, the collective is sketching what the collective thought was important each week. -- from the website.

In other words, you can make a little design and then see what happens when other people add to it over time...

Yes, it's a bit wacky, but enjoy!