Speeder bike antennae, a couple of trees, some digitized Ewok chatter and good times result.
Also, am I the only one who wants Sega to port over the Star Wars Trilogy arcade game to consoles? The 360 has to be capable of running it - you know, the one which let you pick the film and then you went through the key parts ie: Death Star, Hoth, Endor and then had a 1st person battle with Vader...that was a frigging quarter muncher, I tell you.