You could check your area for someone that does the vinyl lettering on trucks and signs. There used to be a guy around here that did that stuff. I saw his system. He could scan anything in and make it in vinyl. You could use them for stencils.
A few weeks ago, at a local car show, I saw a Ford PU that had the Emblems painted on the hood. I wish I had taken a picture of it, as they were amazing.