I manage a sign shop and can do these for you with your custom art (or your idea and I'll do the art). Send me a PM or email your art. I can scan and create the file from the gauges I have, but I'd need to know what type you have with a measurement and preferably a picture to confirm what you have so you get the right size and scale. I'd send you a proof back to make sure the final image is what you want.
Checkered flags, club logos, nekkid Vargas girls, Giger aliens, whatever. I could see this being really cool.