Cut the middle out of a binder
Take a small bit of fabric from a scrap or old shirt (or even paper) and cut 3 slits in it where the three rings are.
Fold over the ends and tape along the back to make it tight.
To hang it on the wall I used 3M hooks that you can get anywhere. I cut an additional slit at each end so the hook stuck up between the binder and what I taped around it. (its under the brown where the red dotted line is)
The whole thing rests on two hooks which attach to the wall.
and... hang things on it!