Over in the Utata group on Flickr, there's a social photo game that we occasionally play. Somebody takes an image of a piece of art (e.g. a painting) and chops it into small squares. Each participant is then randomly allocated one of these squares and they have to take a photograph that represents the square - a real-world representation of the contents of their allotted piece. The photographs are then stitched back together to produce something that (hopefully) resembles the original painting.
Here, you can see the results and compare them with the original pieces.