For the 2008 convention, you could type in a nickname when you registered, that you wanted to get on your nametag, so you could get on your CZCC username or anything else on there. Otherwise, your local officeMax or pharmacy store has nametag products, or just grab the DUCT TAPE! HAHA
I still have the little flashing guitar nametag from 2008. I just replace the nametag insert and install some new batteries.
Cozye-
A "extra" fee for non-entrants?
That's odd. the Entry fee (includes) the cost for the opening & closing parties/banquets, so if you are a spectator, a small fee is appropriate for those few things.
OTOH-
All you really need to take your car to the convention is the driver seat, right? Start there, and see how much else you can get, like the bumpers and all the carpeting ('beauty panels' are optional!)
Good luck!