I just watched a short documentary on IFC called "Have You Seen This Man?" It's about an artist/businessman named Geoff Lupo who sells small objects, things like a single cracker or a thumbtack or a pen cap. He does this by posting, on lamp posts and bulletin boards and such, Xeroxed signs with a hand-drawn sketch, a price (15 or 35 cents or whatever) and those little tear-off phone number slips at the bottom. He delivers the objects to the callers' homes for free.
The people who buy these things (this is in New York) are typically just curious about whether this is a gag or performance art or some kind of political statement, and most of them transact business with straight faces only slightly tensioned with waiting for a punch line, which Lupo doesn't really offer until pressed. And in fact, he's sort of waiting for the punch line too... he's curious just like they are, about things like commerce and consumerism and perceived value and human interaction and chutzpah and art, not to mention the cultural significance of the folk medium of For Sale signs with tear-off phone numbers. Like all great artists, he's making work that's exploring and asking questions. And sparking discussion on many levels, starting with the conversations that must be happening when people see these signs on the street, to the one-to-one direct sales transactions, all the way up to the mass-audience-broadcast of the film (and then, of course, people blogging about it!).
Being a businessman and artist, I was laughing my head off, mostly at myself, I think. And now my head is reeling a little bit.