Randompixel:

For those of you who haven't heard about the project before, Randompixel is a collection of disposable cameras, each swaddled in stickers instructing the weilder to take some pictures, then hand the camera off to someone else, a stranger, a friend, anyone. They take pictures, hand it off, and so on. When the camera's full, they drop it in a mailbox and it makes its way back to me, where I get it developed and scanned, then post it for all the web to see.