By Jack Springgate People are willing to do some pretty incredible things to lay their hands on the Heisman Trophy. Thanks to Tim Tebow’s philanthropic efforts, some of college football’s biggest fans have that opportunity if they’re willing to fit the bill. Some of the people who’ve “rented” Tebow’s Heisman include TV personality Cathy Lee Gifford and country music star Luke Bryan. “To be able to auction it off for six months or a year to raise money for different charities. It’s been able to raise over $1 million to make impacts for lives all over the world and it’s just so humbling,” Tebow …