1. Add the lotion or conditioner to a mixing bowl. 2. Drop in a few drops of food coloring. Start light—you can always deepen the color later. 3. Stir in 1 cup of cornstarch using a spoon until fully combined. 4. Gradually add the remaining 1/4 cup of cornstarch, one tablespoon at a time. 5. Once the mixture gets too thick to stir, use your hands to knead it. 6. Knead on a clean surface until the dough is soft, smooth, and pliable. 7. Adjust texture: add more cornstarch if sticky, or more lotion if dry. 8. Store in a sealed bag or airtight container. 9. To refresh dried dough, knead in a small amount of lotion or conditioner.