The rasterbator can take any picture and blow it up to many times its original size. It redraws the picture using different sizes of dots and then let's you download it in PDF format. You can then print it out and give yourself a wall-sized mosaic of your favorite pictures. Give it a try and let me know how it worked. Did I mention that it's FREE!
I am still not sure what picture I would like to use to actually print out
some may get afterthoughts
