"Here’s how it works folks: the largest pink disc gives you drawings of 50 CHARACTERS who are sure to be ripe for shenanigans, such as: Bathing Beauty, Witch Doctor, Nagging Wife (did Bill Hoest use this?), Drunk, Plumber, Chinese Laundryman (yeah, we know), Mailman, etc. The second-to-largest wheel in blue contains 25 drawings of PLACES for these characters to interact, such as: Airport, Orchestra Pit, Barber Shop, Courtroom, Department Store, Small Island, etc. Lastly, the small yellow center wheel contains 25 different BASICS OF HUMOR, including: Failure To Accept Custom, Animals Doing Human Things, Loss of Dignity (hilarious!), Curiosity, Absent Mindedness, Doing Things The Hard Way, and so on.
"Brett recommends the “ROTATE AT RANDOM” method, though he notes that it’s one of “many” (unnamed) methods for using the ‘master.”