Phil Tippett signed index cards. Obtained through the mail. The unsigned photos are of his characters. Mr. Tippett was Cantina Aliens and did Stop Motion for Star Wars: A New Hope, he did Stop Motion for Star Wars: Empire Strikes Back; He was a creature designer for Star Wars: Return of the Jedi, He did Special Effects for The Ewok Adventure (aka Caravan of Courage) Finally, Mr. Tippett can be seen in:  From Star Wars to Jedi: The Making of a Saga. It's rumored the aliens Mr. Tippett was were: Myo (bottom photo), Trinto Duaba (center photo) and Doikk Na'ts (top photo)