My girlfriend is one of those real crafty people and she was doing stuff with frosting glass, basically she tapes off part of a piece of glass, puts this nasty acid on it and it starts eating away at the glass. When you wipe it off it leaves the glass with a white frosted look.

Does any one know if this would work for a car? Or has any ever tried this? It looks pretty cool, but I would like to know if someone has tried it before I try to screw up my car.

Sure, it'll work. It 's basically the same concept police use when etching vin numbers into glass.

Yep, the dealers also etch VIN # on new cars. Selling this to the customer for a couple hundred sometimes, when the kit cost $5.00 & does 10 cars. There is no removing it once its applied.