Bull Roarer
On a whim I googled Greenlandic music and learned they have an instrument called a bull roarer. So do the Australian aborigines. Dating back to the Paleolithic, the bull roarer is found on every continent.
It is a thin, rectangular piece of wood attached to a cord. The cord is given a twist and then swung in a circle either vertically or horizontally. The sound produced is a rumbling vibrato. Some cultures say it is the voice of a god.
The sound of the bull roarer travels for miles. This instrument can be hand carved following instructions on youtube, or purchased from amazon.