The term 'Powder Holder' can be broken down into three separate words: KEG, HORN, and Donut. A KEG is a cylindrical container made of metal or wood, often used to store and transport beer or other alcoholic beverages. A HORN is a musical instrument made of brass or other metals, usually with a conical bore and a flared bell. Finally, a donut is a type of pastry that is shaped like a ring and is usually deep-fried and covered in sugar or other sweet toppings. All three of these items can be used to hold powder, such as gunpowder, flour, or sugar.