I cut the metal by sawing it into a dogwood blossom shape. After polishing the edges, I textured it with a small dot punch I've made. I soldered a convex textured sterling dome in the middle. Then I formed the petals on a half-pipe dapping tool and drilled holes for the sterling chain's attachment. The copper's patina comes from brushing my torch lightly over the copper. It spent time in my tumbler to soften the patina and shine the sterling.