Ryan Smith's Roos Roast trike in Ann Arbor, MI

The Earth Matter NY compost (and pumpkin) trike.

Gabriel Levinson and his Book Bike in Chicago, Illinois, giving away free books in public space.

Glen Walker of Detroit, MI with his trike made for errands with his dog passengers.

The crew of West Philly's YUMM (Youth Urban Mobile Market) trike. They sell fresh fruits and vegetables, some they've grown themselves.

Stephen, Collin, Mayor Nutter, Sandy, and Mariusz with North Philly's New Kensington CDC street cleaning tricycle (photo NKCDC.org).

The garden maintenance trikes of Naples Botanical Garden in Florida.

The Berks Warehouse Haley is turned into big rock candy mountain in the 2011 Mummers Parade, behind City Hall Casino. The structure's held up in its umbrella holders.