Now, not far from us, in Liverpool, there is this rat or cat (the argument rages in poetry) by Banksy, along with his Love Plane, his locally controversial statement, his Hip-hop kitty and the kids in gas masks generally attributed to him. most of which is generally recognised to be a form of art, rather than common vandalism, especially his Christmas present to the Walker Art Gallery in the city.
Luckily, local artists have decided that this is something to be emulated, rather than continue with the normal level of badly spelled observations about other people's love lives!
I present to you Runcorn's answer to Banksy:
The Runcorn Cow & The Penguin in the Park (different artists may have been responsible)
I am keeping my eyes peeled in the hope of seeing some more, but there's been nothing else so far!