I found this online yesterday. It's a series of eight pictures, each with a different pattern, shape, or design. You can click anywhere on a picture, and after going through all eight, you see the patterns that were created by thousands of other users clicking on the same images.
I was not surprised to see that my first impulse on where to click on each images was also the first impulse of many, many users. But I had tried to be sneaky and click on the least likely spot. I thought, "Of course everyone's going to click on the dead center of the box. I'll click somewhere else." That's where it got interesting. As the picture shows, doing "something else" doesn't mean doing something unique.