[jakewastaken]

There's a warning about using alcohol or other solvents to clean the screen so you might want to keep an eye on that, but I don't know if that's just a catch-all sort of statement or if it's really damaging.

I think the sharpie is worth trying since we know it generally works on shiny surfaces where other inks/paints fail (cds and the like). I think maybe some kind of craft paint made for glass might work (I know it's not made of glass, but it could work).