Urban Camouflage is a cool website / art project that explores how to hide in urban and commercial spaces, instead of the usual woodland / desert camouflage.
Via Swiss Miss and Boing Boing
Only 3 projects up so far, but looking forward to more. I could see it being a little unsettling being in a store where they were doing this, but a really interesting concept none the less.
WebUrbanist also had an interesting (and somewhat NSFW) collection of urban camouflage, painting, art, clothes, etc. Kind of trippy and cool.
Both sort of interesting for looking at how people in urban environments tune out so much of their surroundings, and how to play with that.