Mascot
Mascot , noun
[Through French from Pr. mascot a little sorcerer or magician, mascotto witchcraft, sorcery.]
1.
A person who is supposed to bring good luck to the household to which he or she belongs.
2.
Anything that brings good luck; especially, an animal kept by a group, as a sports team, to serve as a symbol and to bring luck.
Also: Mascotte