Well, Tozzer is not so much "star wars parody" as "everything parody", but in Tozzer 2, George Lucas sure does get a satirical pummeling. I'm a huge believer in the integrity of the original SW trilogy, and I make that quite clear in the comic, but, ya know, in a funny way.
I never saw Thumb Wars, but it looked intriguing. Worth tracking down?
Rob