Fun-In #3 was published by Western Publishing on August 1, 1970, as part of a series that began in 1970. Art comes from Dan Spiegle and Phil De Lara. It features Muttley, Dick Dastardly, Penelope Pitstop, Yankee Doodle Pigeon and Mildew Wolf, among 15 characters cataloged on VerseDB.