I’m starting a company called Pachyderm Yoyos. Pachyderm Yoyos specializes in custom 3D-printed yoyos and prototypes. Choose from our pre-made designs or send your unique idea for us to design and print.
Thank you! These play great! The Hourglass is very fun although a bit challenging sometimes because of the width. The Isosceles is very performant although it does generate a little wind. If you are interested contact me!
Add some copper wire and a battery? Besides that, I’m not sure of anything that wouldn’t be gimmicky. That doesn’t mean there isn’t some use for them, though!