My Lovely Assitant became an official fan of that famous Mouse last October when I look her to Disney on Ice. (I was so pleased that it was Mickey, and not one or more of the Princesses!)
When I told her we were going again in February, she asked for "a Mickey dress that is blue-my-favorite-color." And that is what she got!
I used the same pattern as for
this dress and
this dress, and made a freezer paper stencil for the mouse silhouette. I added some dots. Why? Because I like them!

The result is a dress she loves almost as much as the mouse himself.