Whistle - Trillerpfeife

thingiverse

This is a simple, printable whistle kit that comes with the ball. The ball can be removed by either throwing the whistle forcefully onto the floor or using pliers or a drill to cut through the whistlehole. Print your design - choose from wide or narrow styles. The attached OpenSCAD file allows for easy customization of this design. A picture shows an 80% downsized version of both models. Have fun (and don't forget to wear ear protection!