Check out Piecepack.org. Some clever boardgaming fans have designed a set of universal boardgaming components you can print out on your inkjet printer, and then held a series of design contests for games that use the components. There’s also a wiki that lists all the games available for the system as well as hosting a ton of other info. It’s all free – the only requirement is a printer and some toner or ink, and some friends to play with. If you’re not the type to spend the time to make up your own pieces, you can even buy preprinted sets and even sets made out of wood.