Thinkaboutpainting walls, cupboards or wood furnishings with a fresh wash of milk - white and add just a few homespun accents... for a splash of color, hang a quilt on the wall from a curtain rod or throw it over a chair..........
think you are talking about a blackboard / chalkboard surface as opposed to a Chalkpaint ie flat milk like paint not meant for writing on with chalk but as a flat finish on furniture.