Google announced its sixth-annual U.S. Doodle 4 Google competition yesterday and invited children to illustrate their best day ever as part of the theme.

Google often features its traditional logo in various modifications for special events or competitions, and the creative logos have since become known as Google Doodles. Google celebrated a multitude of holidays and anniversaries in 2012, for instance, and a few of the more notable Google Doodles included the 200th Anniversary of Grimm’s Fairy Tales, 161st Anniversary of Moby Dick’s First Publishing, and 107th Anniversary of Little Nemo in Slumberland.

The Internet Giant started a competition six years ago to have students from across the United States design a clever doodle based on a theme. The winning student earns many valuable prizes and a spot on Google’s homepage. Google gave a few doodle examples for this year’s competition theme via the official Google blog:

“Today we’re announcing our 6th annual U.S. Doodle 4 Google competition, inviting K-12 students around the country to create their own “doodle” (one of the special Google logos you see on our homepage on various occasions). This year’s theme: “My Best Day Ever…” Breakdancing with aliens? Sure! Building a fortress of candy? Okay by us! Riding to school on a brontosaurus? You get the idea (…)”

Last year’s winner, Dylan Hoffman of Caledonia, Wisc., drew a Treasure Island-like doodle for the “If I could travel in time I’d visit…” theme and won a treasure chest of prizes. His awards included a $30,000 college scholarship, a Chromebook computer, and a $50,000 technology grant for Prairie School. His doodle also appeared on the Crayola 64-crayon special edition box last fall, as well as the Google homepage.

This year’s winning artist will get a $30,000 college scholarship and $50,000 technology grant for his or her school, while the winning doodle will land on the Google homepage for a day. In addition, all State Winners will have their artwork on display at the American Museum of Natural History from May 22 to July 14.

Download the entry form on the Doodle 4 Google site and send in completed doodles by mail or online, but all entries must be received by March 22 with a parent or guardian’s signature.

Check out google.com/doodle4google for more information on the competition, or go to the official Google blog for full details on the judging process.