The Anti-Tarnish Nub

Sterling silver tends to tarnish after meals, particularly those containing a surfeit of sulfur, for it is untimely oxidized. Black grimey Ag2S, or silver sulfide (sorry, can't do the subscripts,) results. After a big meal with many houseguests, one could spend fifteen minutes of simply removing tarnish. This painstaking process could be eliminated, however.

Here's where Cathodic protection comes in. Cathodic protection, a simple process based on simple electrochemical principles, is used in many industrial applications, particularly those involving boat hulls and corrosive seawater. Simply put, attaching a hunk of metal that readily oxidizes to the metal that you wish to keep intact will cause the hunk of metal to oxidize in place of whatever it is that you don't want to tarnish.

So...
Notches are to be cut on the hilt of the handles of a certain set of sterling silver utensils, making an "outlet" at the very base of the handle. Next, a metal that is more prone to oxidation, such as Zinc or Aluminum (ideally a metal with many valence electrons), is cut into a small nub with a protrusion, encased in a non-reactive metal for aesthetic purposes, and is fastened into the groove at the base of the handle. When the silver reacts with the sulfur in the food, electrons flow out of the nub, through the silver, and thus the silver is saved from tarnish. When the metal is completely oxidized, simply throw out the nub and fix a new one in its place.

Perhaps some sort of indicator could be used to check the remaining amount of non-oxidized metal in the nub. I haven't quite worked out that detail yet.