You could always let one of the photo pass people take your group photo. Granted, you'll most likely have a character in your picture. I know that in Animal Kingdom in Camp Mickey and Minnie there are photo pass people there waiting for the characters to return from a break and they would take your picture.
You can also pay a certain fee, which I forget what it is, and they will give you all of your photo pass pictures on a CD and you can develop them on your own. I think that the fee is $90 for the CD (but I could be wrong on the price).