I haven't yet perfected the process of making these etched cuffs; the process is long and convoluted and so far has approximately a 50% success rate on a piece which can take up to two hours of hands-on work per bracelet, when making them in batches.
It begins with a sheet of raw copper, which I cut on the bandsaw and both drill and preliminary sand with the drill press. Then I file and sand each cuff by hand to remove any metal burrs or roughness, and attack it with steel wool while wearing plastic gloves to remove any grime or fingerprints.

I then write the Elvish and English quotes on the copper with a wet Sharpie. After the resist had dried, it's time to suspend the cuff in an etching solution of hydrochloric acid and peroxide. Over the next several hours, I occasionally stir the acid to assist the etching process.

If the etch is crisp and deep enough, I remove the copper while wearing protective gear, neutralize the acid, scrub the piece with steel wool, rinse it, and submerge it in a Liver of Sulfur solution. The LOS oxidizes the copper, turning it a rich brown or black. Once the desired color is achieved, I neutralize the LOS and allow the piece to dry for fifteen minutes.

Then for the finishing touches! I gently sand the piece with three different grits of micro-sandpaper so that the words shine brightly on the oxidized background. I form the copper strip into a bracelet shape and coat all sides with a jewelry resin. The resin ensures that the piece retains the oxidized and sanded color, and also prevents the copper from turning skin green. The resin dries overnight; when its ready, I add the beads, chainmaile, chain, and clasp!