The American Occupational Therapy Association (AOTA) is the nationally recognized professional association more than 40,000 occupational therapists and occupational therapy assistants.
OIL PAINTING MATERIALS. To get started you need oil paints, brushes, a place to mix your colors, a tool to mix them with and a surface to paint on. Plus you want a way to clean up. The ingredients are easy to find and you don't need a lot of them. You can do a lot with a little. Good brushes and good paints are easier to use and go farther than the cheap ones.
(see link below) Another type of paint that was used in ancient times, and continued to be used in medieval painting, was casein. This is a water based paint rather like oil paint, which is made by preparing casein glue and mixing it with ground pigments.