»In which we go back to bed (thanks, Banksy!)
Banksy has a shop from which you -- yes, you! -- can freely download and print images, t-shirts, et c., for personal use. No licence, just an admonition against unfair use.
Hurrah! The above is one of several photos of Banksy graf in situ. Hmm. I thought I had more, including some of what turned up in Match Point; I will dig 'em up.