PNES 1: The gameboy.

http://cgi.ebay.com/ws/eBayISAPI.dll...:WNARL:US:1123

I have a few if you don't want to buy that many and you want to spend less than $10.

Thanks! I bought from ebay. Those switches will come in handy on some other projects as well.

yeah, everybody on the BenHeck forums seems to like them as a substitute to the real thing, and they are much more convincing and nicer to use than regular tact switches.