NFL's Ken Stabler -- Solid Gold 84 Ounce Belt Buckle ... Up For Grabs! (PHOTO GALLERY)

Interested in having 84 OUNCES of solid gold hanging around your crotch??? You're in luck ... because Ken Stabler's legendary "Hickok Belt" just hit the auction block.  The belts were given away to the top U.S. athlete from 1950 to 1971 -- and…