Rovio is giving you the chance to make a level in the next episode of Angry Birds. It's all to celebrate the game's fifth "birdday", which is happening on December 11th.
All you need to do to enter is head over to the official Angry Birds website by following this link and submit a sketch, painting, or photo using the form provided.
The contest closes on October 15th, and you need to choose from one of a selection of themes. These include CERN, NASA, and the Google Play Store. How's that for variety?
There are more details over on the site, and you can check out the video at the top of the page if you like consuming information via the medium of moving pictures.