My favorite piece of street art at this stencil fest was the Scalextric track snaking up the pavement. My Flickr set HERE. (loads of other Flickr users have uploaded as well.)
Out-sized Scalextric cars were also seen using the double yellow lines as pick-ups. There was one huge new Banksy image in the middle of the tunnel exhibition space. This was quite symbolic of the mans image/brand that pervaded the whole event - certainly most of the visitor comments i overheard were concerning capturing this image on there camera phones. Quite a weird experiance being at an exhibition where at least 80% of those viewing were doing so via a view finder.