They did make some fat skis back in the day. Fischer Fats in the late 1970s were not a success.
Mike Weiggle Heli Skiing had Atomic Fatboy skis for their guests in the 1980s.I bought a used pair from them in the early 90s. The Fatboys pre dated shaped skis and were so wide that the bindings were mounted offset, creating a left and right ski. I nicknamed the skis "The Cafeteria Trays" because that is what they skied like.
They went to a ski swap after one season of my ownership.
The guides used a ski called Atomic Heli-Guide and word was that it had flex characteristics similar to that of a 2x4.