A simple thumb pick to play both rhythm and melody on the guitar at the same time. You will likely have to try a few different scales to find one, that fits your thumb securely, yet comfortably.

Check the full article about 3D printed guitar picks:
https://blog.prusaprinters.org/does-a-3d-printed-guitar-pick-suck-spoiler-its-actually-awesome_53320/

Supports are not needed (they are modeled in already), brim also shouldn't be needed on beds with good adhesion. You might need a pair of snippets to remove the supports.

Remix, author and licence

This is a slight remix of the original Thumb pick by LoboCNC.

I've made the actual pick part slightly thinner, I've also closed the ring part a bit more, so it fits (my) thumb better.

I've kept the same licence LoboCNC picked for his original design, hence the CC-A-NC.