I sometimes custom cut glass for heavy equipment and classic cars. Rather than throw away the scraps and off-cuts I would try my hand at some glass etching. Here is my first attempt, it's far from perfect as I cut the pattern mostly freehand as I'm not too sure about what's best for stenciling. You can also see where the stencil failed and there has been bleed through if you look close.

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Posting this from my phone and it doesn't look like the image is loading. I'll try and fix it when I get home.