There's nothing funnier than someone wearing a Superman suit. The less super they look, the funnier they are.
The city of Metropolis, Illinois planned to set the Guinness Book of World Records record for the most people in a Superman uniform . Even though there was no existing record, there were a ton of rules established for setting the first one.
The minimum necessary was 100 people and they had to wear authorized Superman costumes. No red towels for a cape with a hand-drawn “S” was permitted. The Guinness folks are a might fussy. And it had to be a SuperMAN costume, no SuperGIRL costumes were allowed.