Artist Dean Fraser came up with this brilliant mashup of Batman and Star Wars.
Just how evil would this Emperor be?
The complete list of characters:
Darth Bat ; Emperor Joker ; Luke Nightwalker ; Robin-2D2 ; C3P-Alfred ; Obi-Wan Gordon ; Rene Mon-Solo ; Chew-Bullock ; Princess Bat-Leia ; Harley Yoda ; Penguin the Hutt.
The rest of them are here.