Poker Chip Alternative
Most games of checkers have cool designs and stack and are pretty durable. They're obviously not poker chips. They generally only come in red or black, but I've spray painted them different colors to make generic Magic the Gathering tokens (the fact that they stack is nice for things that make lots of 1/1 dudes...) and they come out pretty good. Just a quick coat, let it dry, flip it and do another quick coat.

You can often buy checkers games for cheap from thrift stores.