Whipped-cream Charger
A whipped cream charger (also called whippits, whippets, nossies, or nangs) is a steel cylinder or cartridge filled with nitrous oxide (N2O) that is used as a whipping agent in a whipped cream dispenser. The nitrous oxide in whipped cream chargers is also used by recreational drug users as an inhalant for its psychoactive effects. Chargers are also used as a cheap source of nitrous oxide for small, powerful model rockets.
Read more about Whipped-cream Charger: Description, Culinary Use, Production, Use in Model Rocketry