I think there were probably several....I can think of the shofar, a Ram's horn trumpet, and the padoe, a Burmese instrument made from buffalo horn. There are also North American horns with a mouthpiece made from bison horns. Does anybody use panpipes made of horn?

I am sure there are more, but I don't know the relationshipe between "horn pipe"--instrument and "hornpipe"--tune, if there is one.