This is an interesting scenario:
Moose, public-spirited graffiti artist, cleans up
He has devised a brand of street art which not only livens up city streets, but removes grime in the process. His method is to take any dirty inner-city wall or pavement, place a template over it and scrub the concrete clean, revealing an image as sharp as any spray paint which fades with time.
...
The artist's labours have brought in contracts from companies as diverse as Microsoft, Channel 4 and the drinks giant Diageo, and created art in improbable places - from Edinburgh signposts to London's Blackwall Tunnel. But the graffiti has pitched him into a legal spat with municipal leaders in Leeds, where he is based.


Reply With Quote