Maybe LMC or YeraOne
Or this guy sells wheel center cap stickers on ebay with a polyurethane resin dome.
You can do a search of his ebay handle and then look at his items for sale his handle is (gr8wing)
You can also put this item # in the ebay search and look at one of his wheel caps that he sells 8044016620
He also has a web site
www.makingitdigital.net
He maybe able to duplicate one for you if you have a good copy of one he can use.
Good luck