This somehow slipped my attention a few weeks ago, but Fangamer introduced this neat set of arcade pins modeled after fireball/punch/jump buttons, insert coin slots, and even tokens -- everything you need to make an arcade setup, except for the screen, stick, game, and, uh, working parts.

Even if whatever you pin these onto won't transform into a playable arcade machine, it's still a neat set of accessories you can throw on your messenger bag, backpack, or whathavyou. They're also pretty cheap at just $5 for all five buttons!