The file 'Multi Tone Whistle 3D Printer Model' is (stl,scad) file type, size is 3.4KB.
This is an openscad script that can generate a whistle with an arbitrary number of notes.
It isn't quite tuned right. There is a function in it to automatically calculate the length based on the note but it seems to be off by a bit.
It whistles though!
twotone.stl | 48.0KB | |
whistle.scad | 2.2KB |