Replacement mouthpiece for a vintage flute that had a plastic one.
Flute pad hole punch aimer thingy so I can make cheap China pads into open-hole ones for not-so-great flutes without having to buy a bunch of open-hole ones (version 1 was already made and proved the idea, now it’s just to iterate).
E facilitator prototypes before I CNC them (still learning CNC and I don’t like it).
Flute airstream aimer clip-on thingy for older people who have lost their embochure due to dental operations and such. (after I get the hang of the replacement mouthpiece; this is probably the most difficult one, due to precise mouthpiece shape needed)
Model for manually engraving the right size & shape replacement piece out of bone, for a badly cracked teapot.
Spherebot.
But does it fly?