PHOTOS: The most interesting mascots in March Madness

Billikens

School: Saint Louis University

Find them in the bracket: 5 seed in the Midwest

What's up with Saint Louis' mascot? Even the University isn't really sure. They described the figure as the "pet rock" of the early 1900s and said it probably came to be associated with the University because it bore a resemblance to one of their football coaches. Pretty weird, but we'll give bonus points for a great sense of humor.