Here's the first round that I made my students do.
So right now I'm in the middle of a long project involving a friend of mine's visage. His name is Tucker and I've already involved hundreds of folks. Wanna' get in on the ground floor? Right now I'm sending out paper heads of the above man in an multiple part series of Tucker themed artworks.
I'll send you some heads if you're interested. You make a collage out of them and then send them back. All submissions will be plastered all over the interwebs with your name next to this person you don't know.
Get in touch with me.