Ivory Coast Dodo (Mouth Bow, Song Bow) by Master Martin Zagbo
This is a Dodo—an African Mouth Bow. It has one stick used to tension the bamboo/rattan resonating string and another used to strike it, while the player changes the shape of their mouth to create amazing sound effects. It's hard to explain, so to hear this instrument:
https://www.youtube.com/watch?v=yG4nyvzKS7M, about 25 seconds in, Martin begins playing the Dodo solo.
One of a kind—it's unlikely you'll see another one of these available!