I live on the Isle of Wight and some years ago, about 1996 if I remember correctly the Isle of Wight council decided it would be a spiffing idea and a great tourist novelty to have Isle of Wight fiat currency produced that could be spent on the island. Unfortunately before I could get my hands on one these coins they where rapidly withdrawn when the HM treasury threatened to lock the council up in the tower of London and throw away the key !! The police stepped in and decided they contravened UK currency legislation. Just about on a par with all the other daft ideas our council come up with.