Floyd Mayweather Rocking $25,000 Mouthpiece With Real $100 Bills Inside
Floyd Mayweather is so MONEY -- his mouthpieces are stuffed with REAL $100 BILLS ... TMZ Sports has learned.
This is no joke ... we've learned Floyd pays roughly $25,000-a-pop to get custom grill-protectors from NYC-based dentist Dr. Lee Gause -- one of the most famous mouthpiece makers in pro sports.