You Will need a frame (new or old), paint, glue, papers with painting colors
I bought a frame in the 2nd hand shop for €0,25
First you paint the frame in a color you want, in my case I chose dor fushia.
You paste the painting papers on a white paper and stick write the number on each section.
Now you have a easy calander with an overview of the month.
You van used a whitboardmarker to write down you plans en wipe it for the next month.