The UK is awash with No Smoking signs. If I was a conspiracy theorist I’d suspect that some government cronies had got the contract for the signage, they must be raking it in ;-)
The only good one I’ve seen so far is this one outside a ‘rainbow decored’ pub in Brighton (sorry for the blurry photo you might have to squint to read it):
It's very nice to see some of these signage. Through this we can lessen pollution.