See, this is the problem with chain e-mails. They steal a photo, take it out of context, and pass it around without any credit.
This image is from a much larger set, from a blog post about Navy Seal: Skull Infidel. It was first posted in September 2009.
As one of the posters above said, these are 1/6 scale dolls.
The original set of photos:
http://nerdpride-crazychildren.blogspot.com/2009/10/revisit-special-skull-infidel.html