Spray Chrome

It is the same process used to silver the back of every glass mirror you have stood in front of.

You can buy silvering supplies online from a couple of places.

The trick to the process is getting a clear coat over it very quickly after it has been silvered. A nice thick water clear polyurethane gives it great depth, and prevents tarnishing. I have seen glass mirrors that were made before WWII & were still bright, because the coating over the silver did not fail.

Commercial mirror silvering equipment uses a dual feed spray gun that mixes the chemistry as it travels to the glass. The companies selling the "systems" with the beverage containers are using the same guns.

There are pour over systems that will work for small items like emblems or plastic trim.

The silvering is only as durable as the clear coat over it. My dad did re-silvering of antique mirrors, and the most important part was getting the glass completely clean. With the current prices for silver, I imagine this is not cheap to do on any scale now.

B.