Chris McVeigh (Powerpig) has another hilarious send up playing on the fact that the Series 3 Gorilla Mask kinda looks like Vader from behind. It's sort of like Gorilla Grodd as a Sith Lord...frightening.
I was looking at Redbubble, where Powerpig has a store, and there are some outstanding minifg themed t-shirts for sale - including several best sellers from Chris. Do take a look at his Redbubble store and check out all the cool LEGO minifig t-shirts on sale now.
As for the rest of Chris' pics, you find those (for free) on his Flickr stream.