Here's a thread for a SW related impression you may come across.
In episode #121 of Nerd Poker (with Brian Posehn and Friends), Dan Telfer does a Tusken Raider impression:
http://www.earwolf.com/episode/do-it-as-a-tusken-raider/
Discussion starts at 2:25, Impression at 2:34. (not the first one wait for the second) SW discussion continues for another minute or two. Can't stop rewinding.