Twista has a Cy-Ride Bus!
 

http://clue.eng.iastate.edu/~blankley/temp/twista3.jpg http://clue.eng.iastate.edu/~blankley/temp/twista4.jpg

There's like 70 of these buses operating around the city of Ames- and the Iowa State campus- and here Twista has an old one in Chicago.
http://www.cy-ride.com