Burger King Rodeo Cheeseburger (cheeseburger with bbq sauce): Tastes good, but unimpressive in these days of super-whoppers with fried potatoes, bacon, etc.
McDonalds Land, Sea, and Air Burger (burger, fish, and chicken, with cheese, fish sandwich sauce, and ketchap): The tastes tend to cancel each other out. If anything, it all has a slightly fishy taste. And a fried taste, of course. (But then, the main reason we frequent these places is for a fried taste.)
I encountered no resistance, in Tulsa, toward either. The BK cashier knew what it was and rang it up without comment. The McD cashier had vaguely heard of it somewhere, and put it together, without argument, from a description of a picture I'd seen on the internet.
What I noticed most about both of these was how small they were compared to some of the more recent burger inventions. (This growth of the average burger has been mentioned before in books about nutritional trends.)
(Disclosure: My idea of size may be skewed; my usual order, on those rare occasions I crave junk food, tends to be two of the biggest, sloppiest sandwiches, and an order of fries or onion rings.)