You'll occasionally see prop money being exchanged in movies, but it's usually just pieces of cardboard or paper that have been cut out rather than actual money with images of George Washington, such as dollar bills.

Prop money is used in a lot of YouTube videos. Because of this, some of the videos may show sums of up to $6 million. The content producers use this “replica money” to amuse their viewers.

He adds, “For instance, according to the Secret Service, prop money is the most typical type of imitation currency in the local economy.