The imaginary world heavyweight championship belt that Aaron Rodgers strapped himself with so many times now actually exists. As Rodgers raised the Lombardi Trophy, linebacker Clay Matthews joined him on the podium and presented him with a championship belt.
It's actually not the first time that belt's made the sports scene in recent history. It's the same one that Rasheed Wallace wore after the Detroit Pistons won the NBA Finals in 2004.
Obviously, the belt's got a long history in professional wrestling, too. It's most closely associated with "The Nature Boy" Ric Flair, who sported it as the champion of the NWA, WCW, and in the WWF. The belt is actually called "The Big Gold Belt" and was designed in 1985 by a silversmith named Charles Crumrine.
Across the top, it reads "WORLD HEAVYWEIGHT WRESTLING CHAMPION," and at the bottom, there's a removable nameplate, meant to display the name of the current title holder. Rasheed Wallace's belt read "Roscoe" in 2004.