This is a simple spinner that is small enough to fit comfortably in a pocket or a small child's hand, though you might not want to give it to a child who might eat and choke on the M8 nuts!

The spinner uses one standard 608 skate bearings and three standard M8 hex nuts.

NOT ALL HEX NUTS ARE THE SAME SIZE AND SOME WILL BE TOO SMALL. IF THIS IS THE CASE TRY PRINTING A DIFFERENT SPINNER.

I have also included the gcode I used to print the spinners in the photo with the M600 filament change command programmed for the stripe. It's compatible with our NWA3D A5 and most other printers but use at your own risk!