I fancy the idea of anodising the copper at various parts just to give it a very faint reliced vibe - where relicing might happen, but just a faint glow of different colour. I love those green/blue/aquamarine hues. When I have seen people doing this they have sanded the copper and put salt on it before leaving it to sit in Amonia fumes. Can I sand copper leaf? Am I even asking this in the right part of the internet?