Done by Banksy [wiki], I think. Found at Link [flickr]
Nah, not Banksy. Not his style at all. This is the Norwegian artist Dolk who is currently living in Australia. More of his work can be seen on his stencilrevolution.com gallery including a stencil of R2D2 being raped by a dog. I can just hear the beeps of panic in my head.
http://stencilrevolution.com/photopost/showgallery.php?cat=500&ppuser=1864
Even saw a couple of times when the vandal skewed up the stencils and had the white shifted terribly off from the black.
I got inspired after reading this and collected some cool Star Wars Graffiti links over at smidigt.se.
http://www.eelus.com/
Check it out here:
http://marcozna.wordpress.com/2007/03/11/more-and-more-dolk-and-more-again/
He's pretty amazing.
[:-]