We visited the Datoga tribe which specialize in metal working including arrows, knives, spears, etc. that is then traded or sold to other tribes. They live in small communities in mud/dung huts where we visited them. We where invited in to one hut and I saw these two woman in the corner with light steaming in from a doorway and them shrouded in the smoke from the fire in the hut. It was a very special feeling you had at that time.