I like using sriracha to draw a pentagram on my frozen pizza before baking. I call it a Sorcerer Supreme. :D I find it tastes better on a plain cheese, though...
Also, somebody mentioned Waffle House, and this reminds me of a delightfully terrible thing I do there: They have this in-house made salsa, "Casa de Waffle Sauce," see? Well, I figure, "It's the house sauce, and it's Waffle House. I should have it on my waffles. With syrup. And butter. Just 'cause." Surprisingly not bad, and always gets a rise out of whomever I'm eating with.