The madness of the blackboard is not limited only on the walls and furniture (
So to decorate smaller surfaces, the most appropriate is our favorite is blackboard paint in a matte finish. The acrylic paint (blackboard) with high strength is available in many paint companies in a 100 ml package, enough to paint pots, glasses, containers, etc.
You will not only find it in black. You can choose the blue, green or purple hue. All three colors are selected so that you can write comfortably on your surface with white or colored chalk on whatever subject you use.
You can paint a bunch of things by converting a part of them (or even the entire objects) into a writing surface! Decorate glass, porcelain, wood, metal, stone, ceramics, and plastic.
Check many ideas to get inspired, in following images.