I mean Eel! In gearing up for Christmas, this Kamakura, Tokyo, Japan aquarium decked the halls and its all powered by electric eels.
Each time the eel moves the panels gather electricity to light up the 6 foot tree in white with flashes. The aquarium added a Santa robot that sings and dances as well when you stomp on a plate.
Learn Something: Electric eels can generate an electrical charge of up to 600 volts in order to stun prey and keep predators at bay.