I Think You Should Leave put in some hard work flopping all of those coffins
Corncob TV's premier reality TV series required special coffins and dedicated stunt people

As it turns out, showing “over 400 naked dead bodies” on TV, whether in reality or through one of I Think You Should Leave With Tim Robinson’s best sketches to date, is a truly difficult endeavor. In order to investigate how the show’s creators managed to film all those spread blue butts crashing to the ground, Vulture talked to the people who made it possible, learning that the segment required a lot more than “just shooting funerals and showing the ones where the bodies fly out.”
They did, in short, rig all of that shit. After being faced with a script that had Robinson monologue about the injustice of Coffin Flop’s cancellation for “like six, seven pages,” directors Jeffrey Max and Zachary Johnson got to work figuring out how to break the number of coffins they’d need for the bit. They turned to lead prop maker Joe Holliday, who was challenged by the fact that coffins are usually both very heavy and filled with potential dangers since they’re “designed for people that don’t feel pain anymore.” (Or, as the sketch itself puts it: “They ain’t got no souls.”)