A friend of mine has done her own collage and I am hoping it inspires a few more of these.
If you can do one, it's quite easy if you get the photo collage app on facebook. Please send it if you do it.
Photo collage here: http://www.photocollage.net/images.php
You can then use pictures that you already have on Facebook. This app will pick out some pictures for you as well!
Here is Samantha's.
Here is another of mine, not that different from the other:
Get 'collaging people.'