Anyone can do this: just carry a washable felt pen or a board marker with you, and you can grafitti any smooth (glass/plastic) surface in a non-permanent way.

Grafitti needn't be permanent, this way we can bring web-style comment systems to the solid world in a simple, non-destructive way.

Don't like what you see? Rub it off with a hand or a bit of fabric.

Like the Roman fora, but brought up to date.
-- conskeptical, Jul 05 2008

//Don't like what you see? Rub it off with a hand or a bit of fabric.//
How about various body & clothing parts of the tagger ? They can go home and wash their clothing or mouth out and recycle the paint to refill their bottles.
-- FlyingToaster, Jul 05 2008



random, halfbakery