Seth Apter's 5x5 collaborative art project. You can see some of the artwork on his blog today.
Participants were asked to make a 5" x 5" artwork responding to one of the following:
1. If your artwork could talk, what would it say?
2. Who has had the most impact on your creative life?
3. What is one thing you have never shared with the creative community?
(I answered question #1)