Mortician's wax is a cosmetic wax used by morticians to cover injuries on dead bodies. The wax imitates the properties of human skin and is used to fill in gouges, lacerations and areas where flesh is missing. Makeup can then be applied to make the wax match the real skin. Mortician's wax is also used by special effects artists for films. Because it is artificial skin, it can be used on actors to create cuts, scars, wrinkles and other features.
Prepare the microcrystalline wax. Jars of this are obtainable wherever woodworking tools are sold. Put some of the wax into a microwave-safe bowl. Heat it in the microwave oven for 15 seconds.
Mix in the petroleum jelly, adding an equal amount of petroleum jelly to the wax. Microwave the bowl for another 15 seconds or until the mixture melts completely.
Mix in the powder. Add 1 tsp. face powder to the bowl. Stir the mixture until it begins to solidify. If your mortician's wax sits for a while before being used, heat it in the microwave for a few seconds to soften it up again.