Train Whistle with mouthpiece and necklace

The original whistle is the only properly working one that I could print.
Use the one without text here :
https://www.thingiverse.com/thing:77183
Really cool sound, loud and present but not aggressive.

Now with a mouthpiece and a necklace holder for quick draw and fire!
The mouthpiece makes it easier for kids to use instead of needing to blow in both corner holes at the same time.