I inverted the key chain ring on the V4 survival whistle that I remixed so it's easier for some key chain rings to fit in. I also changed the V4 to V5 on the top. Another note: printing this upside down may increase print and whistle sound quality.
Print settings:
Material: PLA
Print speed: 100%
Infil: 15%
Supports: yes
The author remixed this model.