When can I register for the Cosplay Contest? Sara Jones August 16, 2017 08:41 Updated Follow Cosplay Contest Registration is already open! Make sure you Register for the contest BEFORE the deadline - September 7th at 11:59 p.m. You can read all about how it works and Register HERE Related articles What is the policy about Cosplay? What can I wear? Can I bring prop weapons? Comments 0 comments Please sign in to leave a comment.