TheGameCrafter.com is essentially a print-on-demand service for board games. Design your game, upload board/card/token images, decide what other pieces need to go in your game, and then sell it online through TheGameCrafter.com. Half the profit for each sale goes to TheGameCrafter.com, and half goes to the person uploading it.
The site is already host to some pretty neat board games, such as I, Dungeon.