You have from today until 2nd June to submit your design ideas, if good enough and one of the five chosen, could be made into a real purchasable LEGO set. The crowd support stage will begin 12th June and run through to 30th June,  fans will be given the opportunity to choose their favorites. The final review process will then run from July through to August with the final five designs being announced on 23rd August.

Good luck!