Sometimes you want ice cream and sometimes you want a McDonalds vanilla cone. The two things should not be mistaken for one another. Unlike many of the most popular McDonald's dishes, the vanilla cone has maintained its value through the years. In fact, some locations offered the cone for as low as 49 cents just last summer. While you get serious bang for your buck from the vanilla cone, you won't see it in your waistband. McDonald's cones are only 170 calories, which makes them one lowest calorie items on their menu.