Mary Cotter danced into her 103rd birthday party this week decked out in her Amazonian finest, including Wonder Woman's iconic tiara and bullet-deflecting battle gauntlets.

Though she's no longer flying the invisible jet plane or keeping the Justice League honest, Cotter's kept busy for the past 25 years volunteering the Montclair Senior Center in Montclair, Ca. She drives herself to and from the center five days a week where she serves refreshments to other retirees.

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When asked about the secret to her longevity, she failed to mention being blessed by the various goddesses of Olympus, but instead suggested that she just "kept busy."