Need ideas for car jewelry

Hey fellas and ladies, too!
Gearing up for the DooWop Car Show http://www.visiteastpassyunk.com/events.htm - on Saturday and I'll be part of the craft show happening at the same time. I want to make some car related jewelry that the ladies can wear or that can be rear view mirror hangers. Looking for ideas on what sayings I can use.
Stuff like "Not Old, Classic" or "Mutang Mama". Do you have any other ideas?

Thanks!!

Hot Rod Honey