(image source 1: Wikipedia user Gadfium)
(image source 2: renaissancesociety.org)
The Shetani [East African mythology]
Shetani are spirits from eastern African mythology (specifically among the Makonde people). If I understand it correctly they are usually, but not exclusively, malicious. This image shows (a sculpture of) an elephant Shetani. These creatures are usually depicted as physically distorted humanoid or animal figures, and as such they are a popular subject for sculptures and paintings. They resemble melting animals or people, with limbs and faces on random places. It sounds like a great premise for a horror movie.
There are a great many different types of Shetani. One “subspecies” is the Ukundaka, a monster that feeds through copulation. Another is the Shuluwele, a benevolent type of spirit that helps people gather medicinal herbs.
Some Shetani are especially feared, like Popo Bawa, the spirit of dirt and violent sodomy. As you can imagine from that title, an encounter with this creature is not usually a pleasant one. It attacks people sleeping in their own beds, so in some villages in Zanzibar, when people believe Popo Bawa is close, some people refuse to sleep in their own bed, lest they be attacked by this Shetani.