After carving spinners, do you have scraps along the side of the carve?
If so, carve out these bearing caps for the spinner.
Image shows the caps installed on a spinner based on a famous video game symbol.
Outer circle depth (not outline): Thickness – 0.06 inches
Inner circle depth: Thickness – 0.09 inches
Axle depth: Thickness – 0.22 inches
Axle relief hole: Thickness – 0.16 inches