you know they (IL) do have a vet plate for bikes and you can also have it personalized but up to only 3 letters and or numbers.
The personalized plate doesn't cost any more then the universal vet plate for this believe it or not.
I only know because I have one, here you go if you want to look into it. https://www.ilsos.gov/PickAPlateWeb/index1.html
As a side note I was pulled over going...well.... much faster then I should have.
He wrote me a warning ticket after talking for a few minutes he was a vet and rides.
I only had one a few years ago for my AWESOME '60 cloth sliding sunroof Bug.
My forum screen name: Bug Dude - but spelled with my initials. DEW
(not Bug Doodie, like some friends would say)
Been thinking of another one for my '81 Turbo Trans Am.....
4CE FED (Force Fed) ... because it's ... Turbo-Charged
I like that...I have found that you do get a break most of the time with these and a police officer association donation sticker in the rear of the SUV.