Simple Slanted Shelf

Since having a child, I have noticed that the amount of small books has increased greatly! He loves books, mind you, so it's a good thing. However, they have been stacked up on a desk in his room for the past ten months. This build was basically just to organize his space a little better. This shelf could be used for blu-rays, books, memorabilia, or CD's. It was very easy to make and doesn't require a lot of pieces.

What would you like to see made out of K'nex?