213/365 Photo Project - What Is This?

What Is This? Today's photo is a 'guess what this is?' challenge. If someone can tell me what this contraption that is tied to a streetlight in South Boston is I would be very interested. Is it art, a social statement, trash or something more nefarious? Whatever it is it has been there all Summer so I think it's harmless enough. Taken with the LG Optimus Elite , no post processing. Update August 7 2012: When I walked passed this streetlight today this curious object was now gone after being there all summer. I think it knew we were on to it!