The stickers on Ohio State football helmets represent the leaves of the Buckeye, a species of tree native to North America and the official state tree of Ohio. According to folklore, the buckeye resembles the eye of a deer, and carrying one brings good luck. The stickers were first worn in 1968 and are awarded for various reasons, including team, unit, or individual on-field accomplishments throughout a single season. Each player receives a sticker for a win, two stickers for a win in a conference game, and three stickers for a win over Michigan. Players also get stickers for individual performance or unit achievements, and the stickers are a source of pride and recognition for the players and fans, creating a sense of competition and camaraderie among the players