First things first, if you're using an electric starter this will get scuffed up!

Mask the area to be painted. Prepare the surface (degrease, sand to add tooth, clean).

Use a tough paint that's compatible with the material the spinner's made of. The best way to apply it will be to spray. Pay attention to getting even, light coverage to avoid disturbing the spinner's ballance. A final over-all with clearcoat may help improve durability.

Hopefully someone who paints more than I do will have more detailed tips. What I said is, I know, pretty obvious stuff.

J