The Light Blades were designed for the Boston Greenway in 2008 by Dennis Carmichael, but they weren't interactive. New American Public Art fixed that.
Color Commons is an interactive public art work where the public can change the color of the Boston Greenway Light Blades by sending text messages to them. Write any color you can think of and send it to the Light Blades number (917.525.2337) and instantly all the Light Blades will change to your chosen color.
It looks beautiful and loads of fun, but let us not forget the technical bits that went into this cool piece of public art.