No, not the band! this is a little cost saving jewel I just discovered. In a search for some small gauge steel rod, I ran across a wealth of scratch building material. I needed something strong, quality steel, solderable, and most of all, round. I looked all over my shop, benches, junk drawers, etc. Then it hit me! hanging on the wall from one of my motorized bicycle projects, was an extra wheel! Yes, 40 some spokes that I could cut out, and bend and solder into chassis rails, bumpers, roll bars, even driveshaft's for front motored cars. I normally use brass, but many a chassis has been built out of piano wire, witch is essentially the same thing. I also noted that different wheels have different size (dia.) spokes. So next time your kid, or neighbor parks their bike, grab some lineman pliers, and get yourself some building material!
Bob