Spotted in Huntsville

You know you're in Huntsville when you see this bumper sticker your way to work in the morning: "Know a good quantum mechanic?"

I'm still on the lookout for these, though:

If this sticker is blue, you're driving too fast.

This car brakes for Schroedinger's Cat

Conserve energy: Don't be a joule thief

Physicists do it with models