Whistle
thingiverse
This device emits a single, straightforward whistle sound - no more, no less. It's ready to go as soon as it's removed from its resting place.
Download Model from thingiverse
With this file you will be able to print Whistle with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Whistle.