Check out this photo from the set of Star Wars Episode V: The Empire Strikes Back. It is part of a deleted scene from the film. As you can see, those rebels are having a tough time dealing with a Wampa attack. This scene would have been great on screen.
Originally the Wampas were to play a slightly larger part in the movie as you can see in the scene included below, which is another deleted scene, where C-3PO tears off a warning sign on a door with Wampas inside, to try to trick the pursuing troops. This one may have been a bit too comical for the final cut, but I would love to see the scene where the rebels face some Wampas.