Ka-bar knives lake effect ice scraper - KA-BAR Knives Lake Effect Ice Scraper

Many ice scrapers are garbage plastic. There are some that have metal blades that are safe for glass, but their handles are prone to break. This one, even though it is a polymer, is very stout. Highly doubt it would break easily. Though it is a polymer, it does have a pretty sharp edge, and does do decent job on frost. How long edge will last, time will tell, and not sure if you could resharpen it somehow.