mascot

n. something (person, animal, or thing) that is supposed to bring good luck and is often specifically associated with a particular group or team (as in sports)

A mascot – originally a term for any person, animal, or object thought to bring luck – now includes anything used to represent a group with a common public identity, such as a school, professional sports team, society, military unit, or brand name. Mascots are also used as fictional spokespeople for consumer products, such as the rabbit used in advertising and marketing for the General Mills Trix brand of breakfast cereal.
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Noun
1. a person or animal that is adopted by a team or other group as a symbolic figure
(hypernym) organism, being

(n.)
Alt. of Mascotte
  

Modular Approach to Software Construction Operation and Test: a method for software design aimed at real-time embedded systems from the Royal Signals and Research Establishment, UK.