Screaming Spinning Tops

These spinning tops emit a piercing sound when spinning - how do they work and can we make one using 3D Printing Technologies?

Get the files here - https://makersmuse.podia.com/whistling-spinning-top-3d-printing-model

Thai Bamboo Whistling Spinning Top in Action - https://youtu.be/-wKsHuSAN88

How a humming top works - http://www.waynesthisandthat.com/howmusicaltopswork.html

Full Length Spins - COMING SHORTLY!

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50 3D Printing Tips and Tricks - https://gumroad.com/l/QWAh

3D Printing Essentials - https://www.amazon.com/shop/makersmuse