I begin each copper pendant by drawing a small, detailed mandala by hand on the copper. I then use ferric chloride to etch the design into the copper. Next I dip the pendant into liver of sulphur to add a patina to darken the copper. I then expose some of the pendants to ammonia to add some blues and greens to the patina. Finally I gently sand the pendant to remove the patina from the mandala itself, leaving the patina on the background, so the mandala really stands out. I then add a layer of museum-grade sealing wax to protect the design.