Professional sports teams will do anything to make a buck.

The latest example of this practice comes from the Cubs, who are selling a folding chair that Yankee pitcher Masahiro Tanaka sat in during a three-game series at Wrigley Field last week.

Sure, the Cubs are describing it as a "game-used locker room chair," but it's still just a folding chair.

However, clearly someone wants to put his butt where Tanaka once put his, because as of early Friday afternoon, the bidding topped $300.

(Hat Tip: Hardball Talk)