"Dead Celebrity" - Dress as yoru favorite dead celebrity (up to ogranizers of a dead career, counts as "dead")
you have Pirate Ride witch means you have to have "Ninja Ride" ...it's a rule somewhere.
"Christmas tree Ride" - You've heard of people describe a well lit bike as a christmas tree... well just how much lighting can you get on a bike?
"Formal Ride" - Wear your Top hat and tails, put your hair up, and wear your "nice" jewelry... Ends with a formal dance. (best on a "cool" evening) (could aslo just be "high school prom Ride")