Whistle Ball v1

Yet another little whistle. Inspired by traditional whistle. This one has a ball inside of it, which can be pried easily. Once ball is free it will give the whistle a not so shrill sound. Please adjust the size as per your liking. Whistle is functional , will try to attach the sound of the whistle if printables let me. I have added support to ensure walls are strong and no air escapes from it. Pry the ball carefully to not destroy the wall.