Just for fun -
I've just been given a small roll of adhesive-backed copper foil, about 0.04mm thick. Unusually for me, I'm trying to come up with possible uses for it and failing - so I thought I'd ask here for some suggestions, whether jewellery related or not.
Best suggestion received by the end of next week gets a shiny A4-ish sized piece posted to them (A4 as that's the biggest reinforced envelope I have handy at the moment); "best" shall be defined as amuses me most/I find the most practical, in no particular order.
Not affiliated with Cooksons, judge's (my!) decision final, copies of the rules available via telepathy etc. etc. :)
Things I've thought of - which could be elaborated on - include:
Lining copper plating tanks (although they wouldn't last long).
Conductive strips for e.g. wearable electronics.
Tiffany glass - I think I've seen a technique for covering the edges of glass with copper tape & then tinning them to join them?
PCB trace repair (getting fiddly)...