This cup is what we use for silver polishing. It sits in my daughter's room on her shelf. Usually she fills it with a collection of pebbles or pine cones and when we start to notice it loosing it's shine, it is time for a polishing on cleaning day.
I haven't found an all natural silver polish yet (at least one that is not too abrasive), so we use some store bought polish.
A little polish, scrubbing, a rinse and a little more scrubbing in the water...
Instant gratification. Polishing wood, silver, mirrors, or glass always provides such a sense of satisfaction.