I posted a while back with a preliminary attempt at key art. It was fun, one of those very very late night art projects inspired initially by my own inability to keep track of my keys. I won't delve into the deeper meanings presented by locks and keys as symbols in my own life, but I did want to share this key art mosaic that adorns the front of the Greenwich Safe & Locksmith shop in NYC.
There are great photos at Scouting NY: The Coolest Locksmith Shop in NYC, which show the shop before and after the installation of thousands of discarded keys.
There's another article on Oddity Central: Incredible Key Art at the Coolest Locksmith Shop in New York February 10th, 2011