Bird Whistle

Found this, but it leaked the bridging was too far and the top too thin. I made a few modifications which should make for an easier print. Wish I could add a sound file, this is one fun toy.

As per the original post:
This is a traditional bird whistle based on an old toy. Print and fill it with water up to 50-70% of the height (just play with the water level).
Blow the whistle gently and rock it back and forth to change the tone. The hole in the head can also be partially covered for changing the pitch.