Cool! Here are some bitcoin related projects where you need a 3D printer. Have fun building.

https://www.thingiverse.com/thing:4590734

https://cults3d.com/en/3d-model/tool/washer-stamping-jig-for-diy-metal-crypto-seed-backup

https://youtu.be/uMg598-3wIk

https://youtu.be/IhwCEDwGg2E

https://seedsigner.com/