Collective Faces

I was pointed by Jason Kottke's blog to a series of Collective Snapshots -- images composed of a bunch of photos of the same landmark, basically taking an "average" of all the pictures. I thought I'd see if I could do something like that myself in Photoshop, but with human faces instead of landmarks. I also tried some with cartoon characters. They're not as impressive as the ones in the link above -- I used a little over 20 pictures for each one -- but I though I'd show them to you:

Louis CK:

Marilyn Monroe:

Albert Einstein:

Homer Simpson:

Donald Duck:

Sonic the Hedgehog: