A George Costanza Yankees bobblehead and a mispriced Panini Rookie Royalty set headline the week in collectibles.

The characters dressed in a manner that mirrored their urban surroundings—practical yet stylish to walk the city roads. From ...

But baseball even manages to screw its fans when giving away something for free. That George Costanza Bobblehead giveaway on Aug. 21? Only the first 18,000 fans to enter Yankee Stadium will get one.

The New York Yankees are releasing a new Seinfeld-themed bobblehead that features the character George Costanza napping under ...