Ms Maggie Mo's Australian Aboriginal hand project: spray hand with thinned white or black tempera, student paints dots with sticks. I showed 1988 Nat Geo Aborigine video of Gagadju Aborigines blowing paint from mouths over hands as part of ritual. Awesome video also shows artist making intricate bark painting.
Isn't it interesting that the solar symbol for aboriginals is a large circle with 8 small circles around it? That is quite an accomplishment considering most ancient civilizations didn't know about Neptune (and of course Pluto was a planet and then wasn't)