I worked at an ice cream store for a few summers. We just had soft serve there but it was very high quality. I got pretty good at filling the cones after a few days. We sold 3 different sizes, small, medium and large. One of my favorite customers always ordered a “large small” vanilla cone. I was confused the first time he ordered it. He then said “Ok here’s what I want you to do. Take a large cone and pile on the ice cream as if I ordered a large, then when you would have stopped keep going and put another small cone’s worth of ice cream on top.” It was about 10″ of ice cream on top of a 6″ cone. He would then sit and chat with us while eating the whole thing.