Given your two statements about the assignment, it's a little hard to figure out just what the assignment is.
If it's about what is found in your bag and what that protrays about you, I wouldn't get hung up on what is ACTUALLY in your bag. Instead, I would start by jumping right into a list of interesting items that tell about you.
If you are really interested in guys and your appearance, then make-up, etc. would be the focus. If you are political, you might have a button or handout about a cause of interest. If you are a serious student, you might have scrap paper from the library where you wrote down the call numbers of some extra reading for a course. If you are into drama: a marked-up script. If you are into music: some sheets of music and maybe a pick or reed or whatever.
You get the idea. I would make the first sentence a list of two or three items with a few adjectives to describe them. To get the sentence without using I, you could do something like: "The contents of her [my?] bag spilled on the table:
Good luck - this sounds like a fun assignment.