Christmas pyramid
German Christmas decoration comprising a pyramidal frame with candle holders and a central carousel with a rotor at the top driven by candles’ warm air, decorated with nativity scenes, angels, wise men, miners, forest scenes, etc.
en-GB/ˈkɹɪsməs ˈpɪɹəmɪd/
en-US/ˈkɹɪsməs ˈpɪɹəmɪd/