Paint several coats of metallic (acrylic) paint on it. I used purple....
Use a stencil in a nice contrasting metallic paint:
Using some pretty scrapbooking adhesive bead strips, stick them around the edge (can use matching or contrasting colors!)
Outline the stencil with a good color to make it pop out. I used a calligraphy pen in metallic gold.
Here you are!
It's a good idea to top it off with about three coats of clear poly, to protect the paint.
And done!