I was driving along the other week and I saw this on the side of the road:-
Written on hoardings around a building site. I immediately started paying attention to where I was so that I could come back with a camera and find it again.
It took a while but I did.
Things to do to Make Your Day Better as You Walk Past These Hoardings.
If that's not UNdane, I'm not sure what is.
PS It can be found in Kennington, London, on Camberwell New Road, at the Oval end.