Inspired by DIY notebook stands like this one made from steel pipes this one from cork cork or this one made of wood, I wanted to build one too. Of course when the stand should be smaller than the notebook on top of it, the barycenter has to be placed well to prevent wobbling. I decided to build something from leftover wood as it also might work as counter weight.
As base I used a wooden cylinder in which i drilled pairs of holes on different heights. A smaller cylinder can be plugged into them so adjust the slope. The top is a pressed cork floor tile with a medium raw surface and a flat wooden plank glue to stop anything from gliding down.