Sorry if I'm repeating myself, but this is so simple and easy I wanted to share it....again?
I prime my spinnerbait heads with Rustoleum Etching Primer (thank you Cadman Ted).
Then I paint them with Createx airbrush paints, using a small artist's brush instead of an air brush.
Once I've dried the paint with my hairdryer, I add some eyes, glued in with super glue, and then top coat with clear nail polish.
If I hit the nail polish with the hair dryer after it's initially dried/cured, so it isn't moved by the hot air blowing on it, the polish get hard much faster, and I can fish the spinnerbait the next day if I want.
It makes trying new paint scheme fast and easy.
Here are 10 I did yesterday. The ones on the bottom are powder coated with glo white and glo chartreuse.