Floyd Mayweather's $25k mouth guard made with $100 bills

Floyd Mayweather is literally putting his money where his mouth is for his May 2 fight against Manny Pacquiao with a $25,000 mouth guard that contains real $100 bills.

Floyd Mayweather is literally putting his money where his mouth is for his May 2 fight against Manny Pacquiao with a $25,000 mouth guard that contains real $100 bills.

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TMZ reports that Mayweather gets custom fitted for the luxe mouth guards by Dr. Lee Gause, and has added flair such as gold flecks, diamond dust as well as currency to the pieces.

The undefeated boxer says the high price tag is worth it as the guards help him breathe better during fights, and protect his pearly whites, according to TMZ.

"My career's gone on 19 years and I've been able to preserve my smile."

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Mayweather fans can also protect their own dental health just like the champ by purchasing Mayweather-branded mouth guards from Dr. Gause's website for a comparatively reasonable $230.

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- Brendan Maloy