Now let me give you a little idea about how my mind works. After looking at the packing corners for a week, a childhood memory popped into my head. When I was five or so, my parents remodeled the bathroom in our house. As part of the remodeling, the bathroom floor was raised about two inches creating a small ramp from the bathroom floor to the hallway floor. I used that little ramp for rolling cars and marbles down for hours on end.
Because of that memory, I decided to tape the packing corners together and set them on an incline. It was a very simple arrangement. I did not know how the children would use it. Silly me, there was no need to worry because they knew exactly what to do with the inclines just like I did so many years ago with a small incline.