A slide whistle. Video of it in action:http://youtu.be/sA-7epVDcIE -It's designed to be printed flat like the pictures.
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updated October 23, 2022

Model files

Slide_Whistle.stl
Slide_Whistle.stl
20 kB  |  October 23, 2022

Model origin

The author marked this model as their own original creation. Imported from Thingiverse.

License