For music I'd bring Godsmack, Metallica, Disturbed or basically any of the "forbidden" music. That would include the Beatles to right? Oh better yet KISS (You know, Knights In Satan's Service).
Not sure about the food, I like Aguest turkey dinner idea.
Movies, let's see, Star Wars, Anne, E.T. Passion of the Christ...All of the forbidden movies...oh let's not forget The Twilight Sage.
I like the idea of the Thriller Video (I just recently watched it to see what was so bad about it and I thought it was pretty cool)
Video games: I'd bring Halo, World of War Craft, Modern Warfare, Mass Effect and Skyrim, Diabol 3, Dante's Inferno, Prototype....there are tons more I could mention, but I think you get the idea...I've heard JW mention these games by name saying you shouldn't play them.
Dress, I'd say let's have a costume party. I'll be the one dressed as Sparlock. My husband will be dressed in a T-shirt with a picture of Sparlock saying "Do you know TTATT?"
Final idea, We should hire mascots....A Smurf and Sparlock!