The Tiki torch was a type of torch from the Polynesian cultures of Earth's Pacific Ocean. As well as lighting a path at night, they were a popular party decoration.
In 2373, when Neelix altered the Paxau Resort holoprogram to add Polynesian elements, these torches were among the decorations. (VOY: "Alter Ego")
The Tiki torches only appeared in "Alter Ego". It was the only episode in which nighttime was seen in the Polynesian resort program.