http://www.libelium.com/tienda/catalog/contest.php

Looking for the best: III Arduino Contest (2010)

For the third consecutive year, Libelium organizes the Arduino Open Hardware Contest in order to award the best ideas and projects made with Arduino.

After the previous editions, this year we have decided to create just one category: "Amazing Arduino".

We are looking for the most spectacular and unusual projects developed with Arduino.

Rules

1. Just send a video showing the operation of the hack and associated documentation to the contest e-mail address (see website).
2. Deadline for entries is May 15th.
3. It is not necessary that the works are original.

Prizes

300€ in Libelium points to spend on whatever you want: equip your lab, get the modules you need, make a gift...