Multi-tone Whistle

A while back, a friend of mine asked if I could make her a version of a Fox 40 whistle.

Originally, I tried to make one in Google Sketchup but the result was unprintable. Then I made a close replica in OpenSCAD, but that didn't print well and didn't make any sounds.

So, I decided to go after a design that accomplished the same thing (2-tones & pealess) but had a more printable form. It took me 8 iterations, but I finally got it :)