Looking small replacement parts: rear tail light attachment piece

[Becky]

What are these things of which you speak? Where would I find one (hardware store, bike store, etc)?

They're just little strips of stainless steel, about 12" long, and in different widths and gauges. My fender bracket is made from a 1/2"-wide piece. My local hardware store has them over with the screws and bolts and such. I would think that Home Depot or Lowes would have them as well, but I don't know exactly where in a store that big.