States started doing cool things with UV ink 20+ years ago.
My favorite thing on a license though was the microprinting on MA licenses. It looks like a bar going across the top of the license under “Massachusetts” but it is tiny printing and every second or third printing of “registry of Motor Vehicles” they intentionally misspelled “registry”.
I knew the guy who designed that part. From what they said it was common because nobody thinks the state would misspell something like that and ifyou know its easy to look for.