The exquisite corpse project is always a fun short lesson for introducing surrealism to students. The surrealists used to create collaborative projects by folding a piece of paper so that only the smallest portion of the last artist's work was showing. At this point, the next artist would continue the compostion with no knowledge of what the rest of the paper contained (for a more detailed description of Exquisite Corpse, look here).

An Excuisite Corpse (The Website) takes the idea in a new direction. Artists connected by a love of design (and the internet) collaborate on projects. The directions contain 90% of your lesson plan right there! Students could pass on designs (if you have networked computers) or get up and move to a new computer at timed intervals.