The competition held last December was a great success with lots of awesome MOCs. We are running another one for April, with a similar theme. Create and submit a MOC using only the parts from any single set of your choice (that meets the criteria below). If your submission gets the most votes at the end of the month, you win $100!
Rebrickable will be hosting a month-long competition to encourage the submission of some great new MOCs. The nature of Rebrickable is to promote re-using your LEGO parts to build new stuff so this competition will focus on Alternate Builds. An Alternate Build is a MOC that uses only the parts from a single official LEGO set.