Miami had their turnover chain last season, and because it was successful, other teams like FSU have tried to make their own take on the chain. When FSU players force a turnover they get to wear a purse, ahem, I mean *backpack* to show everyone how special they are and that they can make plays on defense. Florida leads the SEC in forced turnovers with 14 and their PR staff decided to have some fun with that statistic.
Miami has 6 forced turnovers this year and FSU has 5. Florida has already scored 43 points off turnovers this season after only scoring 44 all last year, and they are second in the whole nation with a +10 turnover margin.