Fake snow
Fake snow is any product which simulates the appearance and texture of snow, without being made from frozen crystalline water.
Fake snow has been made from many materials. In the early 1900s, decorative snow was sometimes made from borax flakes and even ammonia.
Before the dangers of asbestos were known, the substance was sold for Christmas tree decoration. It was also used to simulate snow in films, including The Wizard of Oz and Citizen Kane, although gypsum may have been used until it was banned. Actor Lon Chaney died after fake snow, lodged in his throat, caused a serious infection, which then lead to a throat hemmorrhage of which he died.
Fake snow has also been sold in spray cans which could apply the flocking to windows and indoor displays.