Comment by pjc50

I think they're sufficiently opposed to high-volume industrial processes as a concept that they would select techniques that cannot be scaled in that way. Part of the art, I suppose.

Edit: ages ago, I thought of but never finished writing down an idea I had for an "anti-masterwork" for electronics. A traditional "masterwork" demonstrates knowledge of the craft by using standard techniques extremely well. So an "anti-masterwork" would demonstrate knowledge by using nonstandard techniques, or deliberately violating best practices, within the constraint of still having to actually work. A bit of a joke or troll.

One of the subideas was "design against manufacturing". Nonreproducible techniques that have to be done by hand. I considered glass and wood but this ceramic would have fit right in.

With a bit more aesthetic consideration you could even make electronic jewelery using ceramic and glass.