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Medal
A medal, or medallion, is generally a circular object that has been sculpted, molded, cast, struck, stamped or some way rendered with an insignia, portrait or other artistic rendering. A medal may be awarded to a person or organization as a form of recognition for athletic, military, scientific,...

s, such as those awarded in competitions like the Olympics, often feature a neck ribbon configured as a Möbius strip. This allows the ribbon to fit comfortably around the neck while the medal lies flat on the chest.