These convex discs from Page McNall are two sides of a pendent she was creating from a blended sheet of clay. Even though she doesn’t show the assembled piece, you can see the possibilities.
Page is working on more 3D pieces saying, “My goal is to make irregularly shaped holes and inscribe intricate designs.” You can see what she’s accomplished on Flickr.
She describes the process, “After I made the blend, I cut the circle and draped it over the copper form where I proceeded to cut the decorative holes and draw patterns. I dusted the entire surface with black embossing powder and cured it. After it cooled, I used 600 grit sandpaper while the clay was still on the copper form and added Renaissance wax to give a subtle shine.” Follow along on her step-by-step here.