Sounds like a good idea! School project alike contest.

Project noted on the quality not on it's complexity. Doesn't need to be complex but more exciting than a simple Led Flasher or Showing an ADC reading on a LCD. MUST be fully documented (Schematic, code, explanations, etc)

Jugement could be done with a poll thread, so users just click on the one they prefer... Easy to manage, allow says 24-48 hours to vote, anonymous, and judged by the whole community... On the Other hand, final decision could be taken by rmteo... as he's the guy who giveaway that nice board...