Ultimately someone dressed up is someone dressed up. The majority of the crowd isn't going to care if a cool costume is "with the group" or not, and will want a picture with Darth Vader or a Tusken or the Jawas regardless of if they're a North Ridge member. If this was in fact just the Bisons staff mistaking the Rubies Vader guy for Chris, the Bisons staff just needs to get better at crowd control. It could be as simple as stating "if you're attending the game and dressing in a costume you need to enter from Gate X" which is not the main gate. That might help limit the crowding in the main area, which has been the major concern. During the birthday party yesterday Janice had also mentioned the idea of possibly bringing back the lanyards that the group used to have (admittedly back then they were for when we were out of costume) for events such as this. Personally I'm not a fan of adding something like that to the costumes if we can help it. 1) It takes away from the "stepped off the screen" look many of the costuming groups are going for (I don't even like having to wear convention badges or wrist tapes with my costumes at cons), and 2) as stated above, most folks in the crowd aren't going to care who is "with the group" or not, they're just going to go "COOL COSTUME OMG PHOTO NOW"