do you live in an area that has a lot of graffiti? when you walk buy you say, 'dang, that looks really good, but i just wish it wasn't painted on in my neighborhood'? maybe, maybe not.
i saw a post about dome digital taggers. using photography and time-lapse techniques, they are able to lay down some light (as in the luminous kind) graffiti. check out the painting in light post as well as the flickr set of other photos. they use light sticks, etc. whatever works to get the final product.
what an innovative way of using technology and mixing it with a different type of photography genre...i'm going to have to try it out.