Mickey was one of the most visually iconic characters ever created, so of course they found the need to redesign him. He looked great before they made his face flesh color, put whites in his eyes, and generally took away everything graphic and distinctive about him.
This drawing is my tribute to the classic Mickey design and to my preschool self, who drew Mickey obsessively.
Side note: Mice will sometimes eat their own tails rather than starve to death. With that kind of self-cannibalizing determination, it's no wonder Mickey has refused to enter the public domain.