Gothamist loves the REVS sculpture that Untitled Name captured in Gowanus (here's another set of REVS scupltures in the Meatpacking District from Untitled Name). Are there any other artists working in steel graffiti that you know of?

REVS graf on Flickr, Joe's REVS graf spotting in Northern Manhattan, and REVS wrote the text for the book, Autograf.

Image from Untitled Name