Here's a simple recipe for making clay paint (or clay alis) from local ingredients. This paint can be used on a variety of surfaces, including drywall.
How to make watercolor paint: handmade watercolors - Lost in Colours
The BEST Homemade Paint Recipes for Kids - Messy Little Monster
La Ecotecnología en México Calentadores de agua, Ecotecnias, México
How to make natural pigments from foraged raw resources
Kvinnoörter, Trädgård och natur, svenska.yle.fi
How to make 'clay' at home, and projects for kids of all ages from
320 DIY to try 3 ideas diy, home diy, redo furniture
Natural Clay Paint, homemade with soil and wheatpaste: A cinematic
Black ceramics from Santa Fe de la Laguna, Michoacán - beautiful
How to Use Clay Paint on Drywall
Top 10 how to make mud paint ideas and inspiration
Modeling Clay Recipes: Recipe for Clay and Play Dough