Making Pottery - Step 4 - Surface Design
Southwestern pottery artists use three methods to create designs on their pottery:
a design is cut into the slip before the pot is fired.
a design, which usually encircles the entire pot is scratched into the pot with a sharp tool.
Paint, usually made from vegetal material, is applied after the pot is fired. While some potters use manufactured brushes, most still use a strip of yucca chewed lightly at one end to apply the paint.