Pimp your Spinner with these seals.
For most common 608 Z Bearings, remove the plastic seal with a small screw driver.
For metallic seals, use a small knife, be carefull.
Simply plug your favorite color and enjoy ;-)
A nice Pacman Spinner there https://www.thingiverse.com/thing:2318329
Print the seals by 4 pieces minimum to avoid extra heat. The outside diameter to get is between 19.3 to 19.5