I did these three five seven myself.
my good friend stef -- this one is definitely my best work
These should be easy if you know how to view Magic Eye images. If not, here's a tip pikacheney told me. Press the tips of your index fingers together
===><===
Then let your eyes unfocus so you can see a little "sausage" in the middle
===><==><===
This is how you should view the images. You'll probably have to back away from the monitor a couple of feet.
Making them is easy... take a picture with the focus on a certain object, move the camera a few inches to the right, make sure the focus is on the same object, and take another picture. Viola!