Polishing rings with a dremel. This technique will quickly burn your fingers, and is not recommended.
On 2013-03-14, Suzette and I had been married 10 years. We had a 10th anniversary ceremony with Mr. Gerald Williams, who was the celebrant for our marriage/elopement 10 years earlier.
As I noted in previous posts, I’d designed wedding bands with OpenJsCad for the occasion, and had them cast in platinum (actually a 95/5 platinum/cobalt alloy). I ground off the sprues and polished them myself with a dremel.