Padme does have that scene in the end where she names Luke and Leia.

Maybe that can be messed with? Instead of just saying the regular names you can have her say a silly laundry list of other names or ridiculous things and cut to reactions from those around her?

For instance maybe when she sees the babies she can say 'jar jar' or 'senator' or something like that?

Another idea - not sure if it is possible though without f/x help from someone though. But it might be funny after the scene normally ends between Anakin and Emperor after Mace has been killed to see Mace simply return and stand there all battered, bloody and bruised (without his arm) and just repeat ""In the name of the Galactic Senate of the Republic, you're under arrest, Chancellor."