What's cooler than running all your favorite emulated games on a $10 computer? Putting that computer into an original NES controller, of course. Introducing: the Gamepad Zero.
I just put 2,400 vintage games (and an emulator to run them) into an NES cartridge for about 30 bucks. Computing power has finally become small (and inexpensive) enough to make such a project possible. What a wonderful time to be alive. :)