-Coat hooks, garage sale.
-Old book, charity shop
-Flat frame hangers + screws, DIY shop
-Plank, piece of discarded furniture
The plank has to fit inside the book. Mark the sides with a pencil, use a sharp blade for old paper tears easily.
IMPORTANT! Cut away just enough pages for a snug fit.
Mark the position of the hooks and make sure the align with the plank inside.
If need be bend the hooks for easy hanging.
Screw some more.