Time Travel Face Bag

At the start of the episode "The Metalocalypse Has Begun", Offdensen tells the band it is time to think of new Dethmerch. To the band's enjoyment, they each pull out a black plastic bag and place it on their heads. Offdensen is confused, and the band explains that when they put the bags on their heads, they travel through time. Murderface takes his off and acts as if he has "[...] traveled through time itself." Nathan then further explains that: "We figured out how to travel through time, at the speed of regular time, with plastic bags."