Yeah...
I found three that sort of fitted and merged them. Was going to use my own x-ray of my foot but realised prostetics probably aren't made of bones.
( cooler_king http://www.flickr.com/photos/_russ_/, Fri 17 Nov 2006, 12:11, archived)

i spent about an hour searching for this source image
then 5 min shopping it

( swaza I'm bad, I'm bad. You know it. I'm bad., Fri 17 Nov 2006, 12:18, archived)