A friend was getting rid of some CAT5 cable, and I laughingly suggested that I could make some chainmaille out of it.
So here is the result (the copper) sitting next to my last visit to micromaille (tinned enameled motor wire). Both happened to be 0.008" diameter, but since the CAT5 was not enameled, it was much easier to work with.
0.008"WD x 0.036"ID copper.
For better perspective (for those that don't recognize the dime for scale), the diameter of the wire is roughly 2x the thickness of paper, and the 25 copper rings covers approximately 1/3rd of my pinky fingernail.