About this 3D model

UPDATE: now a new version with Customizer http://www.thingiverse.com/thing:46825 Big Whistle Collection with a lot of different tones! Funny whistles for example for your kids. My kids love it! OpenSCAD File included. Make your one whistles. Put a name on it. Try also the big whistles with the holes in the middle. And the are all working! Whistle Audio Set for kids, parents and you. Enjoy it and have fun!