Doodle 4 Google is a competition for K-12 students to design a new Google Doodle. This year the theme is "What I Wish for the World." Registration closes on March 17th and all entries are due by March 31st.
Google is offering some very nice gifts for all finalists but the winner will recieve a $15,000 college scholarship to be used at the school of their choice, a trip to the Google New York Office, a laptop computer, and a t-shirt printed with their doodle. The winner's school will also recieve a $25,000 technology grant towards the establishment/improvement of a computer lab.
More information can be found here
I wish they did this when I was in school...