The part was left over when you repaired your spaceship. Never mind. Wear it as a ring and if you find the place where it's missing you can always put it in.
The ring is ring size 58 (circumference), the rails have a diameter of 1.5mm and the bridges between the rails are 0.95mm thick at the thinnest point. Overall, the ring is 4.5mm wide and 3mm thick. The volume is 387 cubic millimetres. You can scale this ring to fit your finger.
Suitable for 3D printing (such as sls, sla, fdm) and wax casting. As a trained goldsmith with years of experience in 3D design, I work with great care. If something does not fit, please feel free to contact me.
If my designs inspire you contact me for your personal ideas.