Triplex plunger pumps use three plungers, which reduces the pulsation of single reciprocating plunger pumps. Foremost was the Reising's complex design of many small pins, plungers, springs and levers. Pipetters with disposable plungers and extra-long pipette tips should be routinely used. It was also used in the medical industry as a gasket on syringe plungers. Various gadgets can also be collected and used, including a helicopter rotor, plungers and arrows. Most early examples had vertical, thumb-operated plungers with the rheostat in the grip. Supply drums, also called plungers, serve as the primary containers for mixing materials. The base has a circular wheel (a "Tiffany setting") opposite the plastic applicators ("plungers"). Donald is armed with a special gun that can shoot plungers, popcorn or bubble gum. Eventually, Rayman amasses a collection of plungers as rewards for completing the trials. The Plungers, The Spunks and Gelatine. Equalisation is ensured by the sizes of the plungers. The Beat the Buzzer round was a general knowledge round, played with hands on plungers. A set normally has two to six plungers included. Offshore wind conditions can make plungers more likely.