We have a body shop and many many years ago, bought some stripe and sticker sets of a "sticker man" called Norman from Blackpool. We then started producing our own limited editions of practically any car that had paint work, with a " Jokers Wild" decal on the side which had a couple of playing cards and a charcoal and red stripe up the side.
Incidentally, we took a Fiat Tipo in swap once with stickers up the C pillar on one side saying Tipo, but on the other it said OPIT.