I chose to make this jewelry dish because it was something I can actually use. I bought several colors of polymer clay and rolled out the colors separately into worms. Then I twisted them together repeatedly until they came into perfect harmony together. I rolled it into a sphere, flatted the clay out, and put it inside a bowl so it could mold into the shape I wanted. After I baked it I painted the sides gold. However my first attempt did not go well:
https://www.pinterest.com/omalesky/sculpture-and-ceramics-vessels/