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.
Dustin Poirier - Michelle Waterson - Frankie Edgar - Diaz Bro's - Claudia Gadelha - Demian Maia - Jessica Eye
Miesha Tate - Urijah Faber - Chuck Liddell - Georges St. Pierre