I found this great site for buying eggs that are unusual sizes and shapes and colors. It is called The Eggers Nest. This goose egg was purchased from them. I put the black layer of polymer clay and the purple border on then cured the clay and added the flowers, cured it again, and then punched out the edges of the egg. At that point i made the flowers for the outside of the black strip and cured again. The inside was designed to look like grey-green-white marble. Buy this on Memory-beads.com
I added a red row for tiny bubbles in the top picture.