TIME EXTENDED! Cosplay Masquerade Apps to be Open Until November 3 by Derpy | Oct 29, 2017 | DerpyConFeed | 0 comments TIME EXTENDED! The DerpyCon 2017 Cosplay Masquerade Application to remain open until November 3. Submit your application now before it’s to late! derpycon.com/cosplay-masquerade Submit a Comment Cancel replyYou must be logged in to post a comment.