Alco-moulage is an inexpensive impression material that will cast any object including props, masks, and faces. It can be re-used over and over so it is perfect for beginners who are practicing. Must be heated in a double boiler so it isn't easy to work with on location. By the time it is cold enough to apply to subject's face, it starts to turn back to its original "cottage cheese" like state. However, will become easier as you work with it. Reinforce with plaster bandages.