Misc.

There's always a few miscellaneous bikes floating around. Some were meticulously designed, some hacked up out of necessity right before a ride, and some just stuck together that way when they were pulled out of the pile.

The Prone Whatever.

Tiny Bikes.

If you're just swinging round the neighborhood, tiny bikes are rad. There's no agonizingly slow period of falling when you wipe on one of them - just wham! and you're on your back before you know it. They make great lifeboats for larger vehicles. Swing it over your head, and it's a hammer. Tie a rope to it and huck it over a wall, and it's a grapple. Ditch it in the bushes, and you're an innocent bystander.