As I'm sure you've all seen from royalbrickcustoms' post, TLC is having a Castle contest throughout 2013 to commemorate the anniversary of LEGO Castle. (More details can be found on Rebrick.) The Brickworld division of this contest will be happening this week at Brickworld Chicago.
Now I know what you're thinking, "David, it's way too late to promote people to build new MOC's for a contest that's just around the corner," and you're right. However, if there is anyone out there who has built a contest-worthy Castle MOC, but did not get it registered in time (by May 13,) then I would like to let Brickworld attendees know that they can still bring their creation, and we'll display it in the collaborative Castle layout. We don't want any good Castle creations left out!
Brickworld Castle Coordinator