Well, it used to be one bedroom of my house, then we decided to do the living room Disney, now it is the whole house.
I have a curio full of WDCC figures, other figurines, plates, snow globes, etc. I have a curio table (like a coffee table but with a glass top and a place to display things) full of pins and buttons, coins and a few watches. On my living room walls are the pictures of Mickey, Donald, Goofy and Minnie that used to hang in the rooms at the Paradise Pier Hotel (I love the Disney auction site). In my family room I have a small curio with Christmas collectables, up on a high plant shelf I have Mickey toys (some old, some newer), I have a large framed picture of the main street station above my TV and the picture of Mickey running from the hall of the Paradise Pier.
In the kitchen I have Mickey plates and glasses, Mickey Canisters, trivets, bowls, untesils (these were all gifts).
Our bedroom has a Mickey quilt, nightstands and two lamps. Our guest bath is done in traditional Mickey.
People think we are nuts, but it is very nicely done (I think). And, as someone else said why not have things on your wall that reflect what you enjoy?
I also have a park map from every visit I have ever made to Disneyland.
Oh yeah - my liscense plate says "DZNELND"