Clay and other pigments are used by tribes of Papua New Guinea. Wet charcoal, huito and annatto are used by natives of South America. Henna is used by the Middle East and India. What the clients purchase are the different dyes used in body painting. They can be simply drop shipped by any supplier.
Body art is the most ancient form of art. If the painting is only on the face, it is called face painting. If it involves more than the face, it is called body painting or body art. Body art is still worn during ceremonies in most tribalist cultures. The brides of India and the Middle East wear body arts during wedding ceremonies.