Frost window or glass door for a luxe look and more privacy. Believe it or not, you can do glass etching easily with a special type of spray paint named Rust-Oleum Specialty Frosted Glass Spray. Applying the finish is easy. After cleaning the glass thoroughly and taping off the window or door frame, apply a thin coat and let it dry. Apply extra coats, if you wish for awesome mistiness. Also, if you become weary of the look, then it's no issue. The finish can be evacuated with a glass scraper. Being that the spray paint comes at a low cost, it's worth a shot if you need to frost glass in your home by your own self.