I said this earlier today, I would like to see ticket stubs (actual stubs) from famous games, first official rookie game, Championship games with autographs. I think incorporating these tickets into a card with a picture, with Lebron's auto would be awesome.
Example: Game 5: 2012 NBA Championship ticket stub, with Lebron's autograph on the ticket stub. Or better yet; Lebron, Wade, & Bosh. I think something along those lines would be highly collectible. Especially if you could incorporate some of the 90s Bulls or anything related to Jordan.