The Mickey paint heads are great embellishments on pages. I've used them on a few different pages. When you pick some up at the store (I got mine in Home depot), grab a whole bunch of colors because you never know what you'll need. I used a dark blue one and a lime green one as added touches on a layout from MGM - the Honey I shrunk the Kids Play Area. It matched my paper and the pictures perfectly.
So yes, go for it! Use those Mickey heads as a page topper!