Haven't read all the posts, but on the topic of odd food combos, I have a few:
1. I'll put sour cream (or cottage cheese) in almost anything. I mix it into my plate of spaghetti and sauce, I'll mix it into mac & cheese, I mix it into baked beans, lentil soup, almost anything.
2. Same for American Cheese; I melt it into everything. All of the above and anything else I can possibly melt it into.
3. Peanut Butter on American Cheese, rolled up and eaten as a snack. Yum. Or mustard rolled up into american cheese, also good.
4. I love a salty/chocolate combo, as I think some others mentioned. Hershey Special Dark and Potato Chips, *THE BEST*.
5. Sharp Cheese on a Ginger Snap.
6. Extra Sharp Cheese and Chocolate, also a good combo.
7. I very rarely eat cake. But if I do, it's chopped up and mashed into ice cream until it's a soggy mess. Mmmm...
8. Cucumber and any Creamy salad dressing sandwiches. Messy but good. Especially with American Cheese!
9. Garlic Powder & Parmesan Cheese on Popcorn (and Onion Powder too!)
10. Any soft cheese spread (Garlic & Herb, etc) spread on a plain donut.
I'm sure I have more, but there's some off the top of my head.