If you are even the slightest bit creative you can make your own. I am not talking arts and crafts with construction paper either. But ordering parts like custom cards, pawns, game boards, spinners and game cash. There are sites that you can submit your own designs or that you can submit an idea to and they, like a jersey site will work up a template and get back to you.
Here is a site that has a few links that give a decent starting point: Game Making Tools
Here is a wiki as well: http://boardgamegeek.com/wiki/page/G...Bits_Suppliers
Google can help you find the rest.