My younger son's room is Mickey-themed: 3 white walls, 1 red wall, and one of the white walls has black Mickey heads all over it (I made stencils in various sizes). He has a large Mickey poster on one wall, black curtains and a red Mickey-head fabric cornice board above the window.
My sons' bathroom is Mickey-themed: gray walls (actually, the Sherwin Williams color is "Monorail Silver"), a Mickey shower curtain, Mickey adhesive sticker on one wall. Red, black and white towels. A Mickey rug and other accessories.
The eat-in part of my kitchen is a bright Mickey red above the chair-rail and white bead-board below. I have a buffet hutch on one wall that has a lot of my Mickey kitchen accessories (bowls, tray, canisters, trivet). There are 2 framed pictures of Disney sunsets that I took on either side of the French doors that lead to our back porch. There's a small "hidden Mickey" sticker in one corner.

And a hanging spinner in one corner that is the Castle on top and Mickey on the bottom.
The rest of my kitchen has the Monorail Silver walls and the accessories are Mickey or red. Mickey kitchen towels, red and black utensils in a jar by the stove.
There's probably not any room in my house, except maybe the guest half-bath and guest bedroom, that doesn't have some Mickey or Disney accessory. My dining room has Mickey salt-and-pepper shakers. My formal living room has a Mickey figurine on the piano. My bedroom has a framed Thomas Kinkade puzzle of Cinderella Castle by my side of the bed. My older son has a Mickey clock and tons of Pooh characters. My living room has family photos from Disney and mouse ear hats on top of the armoire.