Keggy the Keg
Dartmouth College doesn't have a proper mascot. First there was the un-PC "Dartmouth Indian" and then the overly-PC "Big Green," but since 1970, nothing has stuck.
In 2001, my friend Nic and I decided to create a mascot that wasn't racist or sexist, yet entirely unacceptable. Dartmouth has a reputation for hard drinking, so booze was the logical choice.
We created "Keggy the Keg" and snuck him into the homecoming game. To this day, Keggy remains Dartmouth's "official unofficial" mascot. He’s also my only credit on Wikipedia.