Polishing a silver horn

[Dylan King]

I wonder if this method from Haley's Hints could be altered to safely polish a silver-plated horn...

REMOVE TARNISH FROM SILVERWARE

1.) Line a pan with a sheet of aluminum foil or use an aluminum pan. Stir 3 T. baking soda or Comet to each quart of water used. Lay silver in pan making sure it touches foil.
2.) Put a sheet of aluminum foil in a non-metallic pan. Add 1 t. salt and 1 t. baking soda per quart of water used and bring to a boil. Lay silver in pan touching foil until tarnish is gone.
3.) If you're out of silver polish don't despair, water in which potatoes have been cooked will remove tarnish from silverware. Just soak the pieces for an hour and the tarnish will disappear. Wash the pieces in suds, rinse well and dry.
4.) Put silver in plastic dishpan and set in your sink. Add Dermassage and 1/2 c. Roman Cleanser to boiling water. Let soak; stir occasionally.

Note: These methods remove all tarnish. If you want the patina in the grooves of the pattern to remain - DON'T USE THIS METHOD!!