Wow, talk about mixing creativity, play and digital cultures! Have a look at the Box Doodle Project -- you take a cardboard box, play around doing something creative and arty with it, take a digital photo and upload it to the site to create a collective gallery. Thanks for Boing Boing for the link.
THIS is the kind of affordance that is SO POWERFULLY provided by digital media. Makes possible rapidly developing, evolving (and possibly, just as quickly, disappearing) affinity groups. Online communities made possible by shared interests, creativity, play and digital technologies.