Mbunda African tribal mask from Zambia. Mbunda tribe is part of the Zulu tribe separated during the war. Some of these people now live in Zimbabwe in an area known as Nguni, which is in southern Tanzania. These people are called Ngoni, which is Twiga's tribe. Among the Ngoni people and the Matengo people there is a large clan or kinship known as Mbuna, which is Twiga's last name. Some of these African tribal art masks are smaller in scale. These African tribal art masks are very rare.