Linky: a neat grafitti/math tool/toy

Ran into this really neat toy/educational tool, from the website of a TED speaker
http://www.ccd.rpi.edu/Eglash/csdt/subcult/grafitti/

It reminded me of an observation I had made in the Bahamas:
they have really LAME graffiti.  

-- Super boring. It was mostly just writing a word on something, single-stroke of the spray-can, generally in black.
... or else maybe they have NO graffiti, and cheap-o sign makers.


(Somervaudeville tonight!)