[JOAT]

Personally I think it would take a whole lot of glass etching with a CNC before it would be worthwhile. Years back a bought a glass etching kit, to etch some glassware for my then dau-in-law. Not sure what the etch was, it was in a small glass bottle. Applied the patterns, put on the etch with a small brush, waited a few minutes, rinsed it off with water. Came out beautiful. You could get ready made patterns, or material to make your own custom designs. I did 8 glasses in probably 5-10 minutes. I could buy a whole lot of etching kits for even the cost of a hobby CNC.

 

[JOAT]

I've done a lot of glass etching with this stuff,
here is a shelf I made that I etched the mirror....easy peasy brush on wait 10 minutes wash off.....

Nice work.

That's the stuff I was trying to think of. Should still have most of a bottle around somewhere, but more likely it's lost forever. Can get some pretty fine detail with that stuff too, with a fine tip brush. If I ever get the urge to make some more custom glasses, that's the stuff I'll use.