Annette Funicello has stated in interviews that, upon being cast for the show, she told Walt Disney that she wanted to change her last name to one that sounded more "American". To his credit, Disney told her to keep her original last name because, "once someone remembers it, they will never be able to forget it".
The Mouseke-ears were designed by Disney storyman/Big Mooseketeer _Roy Williams. He based them on a gag in The Karnival Kid (1929), in which Mickey doffed the top of his head - ears and all - like a hat.
Although the show was filmed and broadcast in black and white, all of the animated segments - the opening theme, Mickey's introductions and farewells, the Jiminy Cricket shorts, etc. - were filmed in color.
Each day of the week had a different theme. Monday: Fun with Music. Tuesday: Guest Star. Wednesday: Anything Can Happen. Thursday: Circus. Friday: Talent Round-up.