I am currently adding the gear to do glass etching. I already have a small sandblasting tool, and a vinyl cutter but it turns out there are other ways to make the masks. There are cool photo-reactive products which you can use to make very detailed etching masks with no manual weeding steps.
Basically, you print your artwork on a transparency, put it on the resist medium, and and expose the stack to UV light with a tool like this. It’s kind of like making a silk screen except you end up with a single-use stick-on mask.
There are ways to use a laser cutter to make etching masks, but you stick film to the glass and then laser out the bits that you want exposed to the abrasive. That means that to do a curved surface, your laser needs to have a rotational tool. I have not yet found a product that lets you make a mask in the laser and then apply it to the glass.