Whistle (WARNING VERY LOUD)
thingiverse
Here's a whistle I modeled in just 5 minutes. I created it after the frustration of downloading a so-called "Emergency Whistle" that turned out to be incredibly quiet even when blown with maximum force. I tested it thoroughly, breathing through it and exhaling slowly - there should be a faint whistling sound. Please print this out and let me know if it works as expected for everyone!
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