Ingleton Pottery demonstrates how to pierce carve a clay pottery bowl. First, form your bowl on a potter's wheel. Then take a blade to the undried clay bowl and score your design into the bowl using the piercing technique. Gently press out the design so that the clay is removed from the negative space created by the scoring marks. Continue making the design around the bowl. You can make intricate designs around the bowl using the piercing and scoring technique. Be careful not to damage the bowl while making the delicate design. Your clay bowl is now ready to be dried.