Chicagofreakbike has an amazing collection of chopper, tallbike, trashbike, and et cetera photographs. Hotcha! (and thanks, jimg, for the pointer).
This led me to thinking about the Blackstone Bicycle Coöp near my old stamping grounds in Chicago, and a link on that site led me to the Bike Furniture shop. And that reminded me of another link jimg sent: the Oklahoma Bicycle Society.