What is the Coolest Gadget You Have Ever Found on the Sidewalk?S

The guys at Objectified snapped this photo of an old stereo system lying on the sidewalk. This inspired the question "what is the most interesting gadget you have ever found on the sidewalk?"

If you have ever lived in an urban environment, chances are you see some pretty interesting stuff just sitting there waiting to be hauled off to its landfill doom. Let us know about what you found. [Objectified]