I'm wondering if there is much literature around whistling, i.e. human-mouth style whistling. Either using your lips or your fingers.
To make my query less vague: say I wanted to create a rubber football with a tube through the axis of rotation (i.e. the axis refers to when the football is thrown in a spiral). How should one shape the tube, and how fast would one need to throw the football, to make it whistle comparably to a human? Do we know roughly how much additional drag the whistle will put on the football, when compared to a traditional football shape? I imagine the material properties of the rubber will matter. The rubber I will be using will be about the consistency of a rubber o-ring.
I've done a little searching on this topic but I am not certain what keywords are relevant, as there is an enormous literature on whistles, mostly not of the type I am asking about here.