Could be called trashpo, meow...
with car stickers like license plates!
In Greece, we used to have stickers for the car tax yearly from 2000 to 2012,
and they had to be on the windshield for traffic police to see.
However, after 12 years of stickers circling the driver's view,
most of us scraped them all off, and today we get the
auto-tax bill on-line, we pay on-line, and police can check on-line :-)
(it wasn't easy finding cars in the neighborhood with these stickers still on)
Thank you, Mike, for sending me on the hunt...
and 'tis a nice envelope you sent with washi!