Michael Moore has one of those composite images on its index page today- Wubble U made up of faces of soldiers killed in Iraq (hi-res version here), and an attack on yesterday’s press conference.
The Dubya picture comes on the heels of the mosaic of John Ashcroft made entirely of porn images (the image has been taken down as I write this, but consider the link potentially very un-worksafe in case it ever comes back).