1. As I said, fabricated. This makes an noticeably unique to the others. Try different textures (cotton, burlap, etc.) and colors. I've seen people hot glue it to the board (the glue could also be fabric glue) and continue to glue articles of paper onto the fabric.
3. Pictures. People love pictures, and they help in proving validity in science experiments.
4. Quality materials. If you need to keep an essay separate from the board, don't staple it together and call it good. Put it in a report holder, or foldable clipboard.
5. Don't Clutter! It's much more appealing if there is some space between the paper.