"Unexpected room service" has an unpleasant connotation to me, like something Dominique Strauss-Kahn would be into. Fortunately the editors of Condé Nast Traveler made their online list of one-of-a-kind room service offerings strictly culinary.
The dozen choices include chips, salsa and a bucket of local beers at Four Seasons Resort Scottsdale, a stripe-wearing candyman bearing a cart of sugary goodies at Ritz-Carlton Chicago, a Paula Deen-style donut burger at the Thompson Toronto and a traditional Japanese breakfast at De L'Europe in Amsterdam.
But you don't have to have a gimmick to be interesting. Houston's Hotel Icon made the list with its Konigsberger Klopse, "a plate of Texas wild boar meatballs served with mashed potatoes, a sour cream sauce, and braised red cabbage," off a seasonally changing room service menu. While wild boar is definitely interesting and unexpected for a room service menu, it also sounds really tasty.