I saw a post here on a magnetic lamp that one could set on any metal table such as a bandsaw. It got me to thinking of my overhead power cord arm that I made for my shop. When I built my shop I designed it so I have no power cords that laid on the floor so as not to have any trip hazards. I wanted to be about to have a cord that hung down over my assembly table so I wouldn't have the cord coming from the a wall outlet that "bridged" to the table. So I made this swinging arm that hung horizontally just below the ceiling about 8" and projected out 10 feet. I welded a brace to it and made some maple mounting blocks so it could swing and does so about 160 degrees. It work very well and was cheap to make. Sorry for the poor lighting photography, my flash was giving me fits for some reason.
Dave