Photo of R2-D2 in His Crate
This is a way cool photo of R2-D2 in his shipping crate. One of the things that I like most about it is the timeline on the open door. It reveals the different set locations and different movies that this particular droid was a part of. As you can see, the oldest date written down is 1997, so that tells us this was used in the prequels. That may make the photo slightly less special, but it's still cool!