They are like fake money. Just fun to bet with without actually having to wager any real money. You can also win then in various competitions as well as offer them to people to make signatures and avatars.
Sig Credit: M.C
Miesha Tate - Urijah Faber - Dustin Poirier - Frankie Edgar - Claudia Gadelha - Tecia Torres - Demian Maia - Jessica Eye - Diaz Bro's