My favorite is my glow in the dark ice cube from Sci-Fi Dine-in Theatre. It's on the hutch and I love to turn it on and off whenever I walk by. I also love the Christmas ornaments and the refillable mugs.
But, Towncrier, I am really coveting your monorail magnet. Where did you get that? I need to find one on the next trip. I'm easily amused, too, as you can probably tell by the icecube thing.