Instead of using chemical silver polish, you can make your own quick and cheap polish using banana peels.
Basically you just have to blend some banana peels with water and then use that paste as you would any other polish (rub on with a soft cloth, wash off and dry with a soft cloth). Voila! Shiny silver. Photo remixed from originals by robin_24 and Muffet
Polish Your Silver Using Banana Peels [Apartment Therapy]