Tbird man,
Try checking with your local arts and crafts store for spray paint for glass, which gives it a frosted look it comes in a few different colors, also they carry a hand held bit for doing etchings which if your design has alot of detail that might be a way to go. Also seen mentioned in various forums of a bit being available for Dremmels for glass etching. You could also use small fine grit stones for a dremmel, I think it would be hard to use sandpaper unless your doing a large area, I used a sharp awl to scratch a etching of a dragon in my plexi window, turned out good. Looks silver in color with no case lights, took it one further placed a high brightness red led 1.7 volt, on the edge of the window above my etching and hooked it to the HDD header on the mainboard, now when I get Hd activity my etching lights up bright red.
Burner
