I've been known to take pictures of "words" - ride titles, signs, etc. They can be used in several different and unique ways. There's just DH and I, so I don't often get pictures with people, other than folks I don't know LOL ! I started last year collecting pressed pennies from each of the countries at Epcot and then some photos of the area. Got five or six, so this year I think I do the rest. Sometimes it is fun to pick a theme, like the pennies and the countries. Encourage her to let her imagination run with it.
I'm sure others will have more good suggestions.