Very Important Question

So you may have noticed that I'm slightly obsessed with the cool license plates some folks have. Recently I've seen some great ones, like:
CTHULHU
GONZO
7OFNINE
TREKTNG

I've been suffering along with my boring plates because of the expense of getting new ones, but now my plates are expiring. The important question is: What should my new license plates say?

I'd prefer something fannish, but since it's a family car, it has to relate to a fandom we all share. Those include: Buffy and Angel, Firefly, Star Wars, Star Trek, Doctor Who, The Simpsons, Futurama, Lord of the Rings, Harry Potter

In Arizona, plates can have up to seven letters and/or numbers, but no symbols or punctuation. Can y'all think of any good ones?