Art (photography, digital, sculpture, traditional...etc.)
Writing (short stories and poems)
You and your pet
Family photos
Future (like, a section on what select students, randomly selected of course, would like to do in their future - what their plans are)
What Inspires Me (then have pictures next to the students and their quote of what their inspiration is)
Polls on favorite books, movies, music, etc.
Popular movies/books/music for the year. And include a sampling of music, books, and movies from all genres.
Quotes that people like (either personal or larger in scale)
Polls on random things, like favorite colors, foods, drinks, things to do after school, etc.
Just open it up to the students at large, get input on it from your peers. Collect their art, poetry, whatever.
I can't think of anything else right now, but I hope that I've helped somewhat!