http://shop.lego.com/promotion/Default. ... nChallenge
Do you have what it takes to design a cutting edge creation? Enthusiasts ages 5 and older are invited to submit an idea for a new LEGO creation. Develop your new LEGO creation using a maximum of 100 LEGO bricks and/or elements. Then, submit a photo or image of your creation along with a brief description of your creation (50 words or fewer). You may build your creation using physical bricks and elements or you may develop your creation virtually, using LEGO® Design byME.