At Christmas, Taylor Yarbro was visiting her boyfriend’s home when she spied a 1980 Coca-Cola bottle honoring the University of Georgia national championship team.

Her boyfriend's dad had attended UGA and has a lot of memorabilia. He noticed her admiring it.

“He handed it to me,” said Yarbro, a Georgia junior who is part of the Georgettes, the official dance team of the UGA Redcoat Marching...