This is mostly scratch-space that I use for articles and documentation that's not quite ready for public publishing.
TODO:
Wishlist:
Whistle CAD Science
Best sound profile and how to achieve that
Tooth-grooves for hands-free risk-free whistling
Minimal filament
Fast print
Low footprint to maximize build-plate numbers
Optional flat area to house readable phone number
Designs that can tolerate non-perfect printers, resilient design