But the old ones with metal clip, metal retractable tip, similar to this, of which I have a case

https://www.govgroup.com/images_products/2870282_big.jpg

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Does anyone remember Love Line and how Dr Drew (rest his sanity) used to be able to identify childhood sexual abuse by baby voice?

If you employ your vestibular folds properly you can lower your voice one octave while also talking in the same pitch as normal. If you constrict your throat properly, you can attenuate the sound which isolates a harmonic of the fundamental pitch you are speaking, effectively creating a third note.

You are now throat singing like a Tuvan, Mongolian, or a Tibetan monk

lol idk