Various Techniques applied to Switch Plate Covers, from Raku style, simple sifting, stencils, etching, adding foils, wafers, buttons, etc. Even one with Eutectic response (yes, on purpose!). I have also on occasion added cut pieces of copper to the plates. So just about anything goes.

Photo 3 of 4 in Switch Plate Covers

Starry Night
"Starry Night" Raku, leaded enamels over unleaded 2020, high temp. fusion.