Minions Fart Battle
It looked like a metallic rifle with a canister on top holding blue liquid and an object like a shower head attached to the end. This distributes brown gas which can travel for about a meter and a half before dissipating. True to it's name, when fired, it sounds like someone farting, and it's gas is noxious and disgusting. Regardless, this weapon is used as a respectful salute tool, such as the 21-fart gun salute.