|From Photoshopping My Co-workers|
This one took some time, but wasn't as bad as you might think. I started with the original joker picture from the Dark Knight, then added Jake's head, resizing and rotating it appropriately. As I often do, I then copied the base layer and pasted it on top so I could cut a hole through it and see the head I had added, smudging the edges to blend it correctly. I then had to adjust the colors and levels to make the skin tones match up to the actual skin tones that are really only shown without makeup in the neck. The "makeup" was applied using the paintbrush tool set at about 20% opacity. I used different layers for the white, dark, and red colors in case I screwed up.
You can view all my creations on my Picasa page at http://picasaweb.google.com/AlanWaiss/PhotoshoppingMyCoworkers.