Okay this is a trick that was used for a while on keycaps but i've applied to fix stabilizer rattle. I get this a lot and even get people sending in boards for me to fix when there is nothing wrong at all with it, it's just lose keycaps stem holes or warped spacebars that cause this sound. This sound help some people, but please remember this is one step to take AFTER you've lubed your stabilizer properly. Let me know if it helps!
#mechanicalkeyboard #keebs #keebtok #keyboardmodding