Felt chalkboard erasers or blackboard dusters are used to erase chalk markings on a chalkboard. The police seized white masks, knuckle dusters, telescopic batons, quartz-sand-gloves and illegal drugs. Barn Owls, Bovines, Broilers, Cheesers, Cow Tippers, Crop Dusters, Farmhands, Haymakers, and War Pigs. In gas dusters and freeze sprays, the propellant itself acts as the payload. He had manufactured home-made guns, knuckle dusters and slingshots in his grandfather's garage. The beaten soldiers were called "Browncoats" after the brown dusters they wore as their uniforms. The Blades in the film were based on the Broome Dusters. Woolman and banker Travis Oliver led local investors to purchase Huff Daland Dusters assets. He imagined a wide variety of drone applications, from children's toys to agricultural crop dusters. Some crop dusters are equipped with a hook for towing operations. Since gas dusters are often contained in pressure vessels, they are considered explosively volatile. True "air dusters" using ordinary air are also available in the market. At full deployment there were roughly 200 M42 Dusters under command throughout the entire war. Diamond soon joined a New York street gang called the Hudson Dusters. Most if not all of the in-country Dusters were turned over to ARVN forces.