I'm afraid that this is a bit UK specific, but back when I was writing my wee degree dissertation about Graffiti, one of my favourites was:

If Typhoo put the "T" in "Britain",¹ who put the Cunt in Scunthorpe?

The answer, of course, was

The same person who put the Penis in Penistone.

¹ A famous advertising slogan in the 1960s and 70s for a brand of tea.  Scunthorpe and Penistone are placenames; the former is supposed to have been regularly screened out by "Internet Nanny" filters on the grounds of obscenity.  I've only been there once, and it was rather too dull to be obscene.  Nobody goes to Penistone unless they have to.

Malcolm