Next year, the LEGO Ideas project, which was originally launched in Japan as LEGO CUUSOO, will be celebrating its 10th anniversary. To mark the milestone, the team has invited builders to take part in a contest to build your own version of the LEGO Ideas logo. You can either base your new version on the official one below, or completely re-imagine it. The best entries will be featured on the LEGO Ideas Facebook page to celebrate the anniversary, and the best of the best could win some very cool prizes.

Entries can be both built with real LEGO bricks or digitally designed with building software like LEGO Digital Designer. Note that your entry must be cool and original, relevant to the theme of the LEGO Ideas and feature some of the best uses of LEGO elements.

The grand prize consists of six LEGO Ideas sets — 21306 Yellow Submarine, 21307 Caterham Super Seven, 21308 Adventure Time, 21309 NASA Apollo Saturn V, 21310 Old Fishing Store, and 21312 Women of NASA, all signed by LEGO designers. The runner-up will get a couple of NASA-themed sets — 21309 LEGO® NASA Apollo Saturn V and 21312 Women of NASA.

The entry deadline is December 15, 2017 at 10:00 a.m. EST. A time zone converter won’t let you miss the deadline. Complete rules and requirements can be found on the contest’s official page.