Florida has no state income tax. Specialty plates are one of the creative way things are financed here. There are a lot of beautiful environmental plates, which to my mind is a much better way of "saving the namatees" than taxing folk.
I had a special plate for a while, if I remember correctly it cost about $28.
whoops. namatees=manatees.
How about the John Lennon "Imagine" Specialty Plate?