Ethnology of Manihiki and Rakahanga
The missionary Aporo (13, pp. 150–151) states:
Another species of gods were stones; they would place them in their girdles when going out to sea or war, or when they slept. Another custom they had of making a god of a dead man. They used to take the head, teeth, nails, bones, and hair, after death. The bones of the ariki were given to the warriors, and his family…. Another god they had was Matariki (the Pleiades) which they worshipped, and another was the pukatea leaf, the paiku and the nikau (palm), and the oil of the coconut.