Re: does anybody on this forum restore license plates?
Rattle can, gloss black. I don't remember the brand but it's not important. Rust-o-leum makes a good paint for this kind of job.
Here's a tag I did many moons ago. It has some road rash from 50,000 miles of highway abuse but it still looks okay.
I don't have any before photos but this tag was just rust when I got it. I used the methods I told you about above. Good luck. Post some before/after photos of your tag when you're finished.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"