I've always had a soft spot for Mickey. One of the first projects I worked on at Disney was Mickey's Christmas Carol. The Brave Little Tailor and The Pointer are a couple of my favorites. I especially like when Mickey (voiced by Walt himself) gets mad at Pluto in The Pointer and calls him a "bone-head!". There's something genuine about that moment that makes me laugh.
Though he's since been reduced to a corporate trademark who baby-sits preschoolers for a living, I'm glad he once lived, long ago in the golden age of cartoons.
These were drawn digitally on a Wacom Cintique using Photoshop. (click to enlarge)