Use my settings, and cut the earrings. (It's a perfect project for using small leftovers). You can combine it, add more holes and make a longer one - I wanted to have a very simple version.

I am using POSCA markers to paint them on both sides. You can use spray paint, or anything else - just make sure that it is fully covered.
You also can use different colors, or add extra design.

I am painting both sides.

I am using glossy varnish to make them shine, and secure them. With this, you can make them waterproof (okay, these earrings are still from wood, but at least a little rain won't damage them). Let them dry completely

Add earring settings and wear them proud! make more colors, if you like them!