Yes, I've seen pics of a Mickey Mouse iWatch, so I guess it exists.
At $350, I certainly wouldn't need it and won't get it. I just don't see anything compelling about it. I guess the Apple fans that like to show off will scoop them up...
It's not a Mickey Mouse specific watch. The face of the watch is customizable so you can put all number of things on it. There supposedly will be three models and 2 sizes of the watch with changeable bands available separately.