I just got back from Comic Con today and while there were tons of people dressed as Darth Vader and a few artistically painted Vader helmets, there was nothing like this wonderful disco ball or the Darth Vader gas mask featured on this great Oddee article. If there was, I might have ended up spending even more money on things I don't need.
Link
http://media.comicvine.com/uploads/6/62134/1927975-img_5938_super.jpg