The majority of air-dry clays are available in white only and must be pre-tinted before modeling or painted when cured. Sometimes a combination of both! We've talked about many different things you can use to pre-tint your air-dry clay: Acrylic paints, pastel chalks, cake colorant and colors especially made for using with cold porcelain. Guess what? You can also use colored markers, as shown in this video from SmallEffort.