Okay! Something off the Top Gun soundtrack for the opening battle sequence.
Those annoying Buzz droids have Hal 9000 eyes, so why not have them speak like Hal?
R-20,000 needs a good death line. "Avenge me!"?
The Super Battle Droids that hassle Artoo could either speak like the rednecks in Deliverance or be subtitled. At least they need to be different from the regular battle droids in their speech in some way.
I remembered some truly awful muzak that could be good for the endless elevator scenes, or background music piped throughout Grievious' ship.
I still have my Duke Nukem CD somewhere with this track on it.
Duke Dooku's severed head won't shut up and die, singing to itself in the background. When the ship changes attitude, his head rolls into the elevator shaft and falls past our heroes, still singing.
Replacing General Grevious' voice would be hilarious, but I'm stumped on who he could sound like.
Airplane! music and dialog as Anakin crash lands the ship. Lloyd Bridge's "He's coming right at us!" as the control tower is demolished.
The pod race announcers return as the host(s) of "Coruscant Tonight" relating handsome boy toy Anakin's daring rescue of Palpatine. They then casually mention in a related story how many people died when the ship crash landed...