You can make your own full-color 3d photos for viewing with the red and green glasses using this fun software Callipygian. You can see my first rushed attempt (that turned out fairly well) from My Gallery.
Note that my first attempt was taking in my dark basement and very rushed; just showing how amzaingly easy it is to get a reasonable shot with little effort. I can't wait to try this in the daylight and spend a bit more effort getting a decent shot. Edit: I must note that I got this info from the always entertaining memepool.com.