I dipped them into acrylic paint and let dry. Then applied a coat of varnish. After they were dry I cleaned them up with my fingernail to get the excess paint and varnish off.
This is what they look like with the varnish, nice and shiny,
I used the Ranger distressing ink, stamp pad ink, and alcohol ink on them. I just twirled the stick pin while adding the alcohol ink, or rubbed them across my stamp pad. A Styrofoam plate works well to hold the stick pins up while drying. Once they were dry I dipped them in varnish. The ones I rubbed in stamp pad ink were still a bit damp after leaving them over night, but I dipped them in varnish anyway. They dried very nicely.