Ben Nye Grime FX Powders can be used to create effects on character makeups, prosthetics, costumes, and sets. This series contains their classic character powders–Ash, Plains Dust, and Coal (formerly Charcoal)– along with Grease, Grit, Sand, Slime, and Stone. With eight colors to choose from, you'll easily be able to create the desired look, whether by using just one or by layering a few for a more customized grime effect.