RARE! Back To The Future Creator Bob Gale Signed Marty McFly Funko Pop ACOA Cert Posted on December 1, 2023 by admin This Funko pop is signed by BTTF Writer/Creator Bob Gale. He included an awesome inscription along with his signature. The Autograph is authenticated by ACOA. Make sure to check out our other listings for more awesome authentic autographs! Share