For the initial iteration of the Made Invaders sensor-driven Internet-connected Nerf-gun firing range, we developed the RFID registration station.

That allowed people to enter their name, and optionally Twitter-handle, which would then be stored on the RFID tag. That tag would then let them start up the range, giving them 30 seconds to hit as many targets as possible. At the end of the game, the final score was transmitted back to the registration station which would then tweet the result.