Idea: Make my first thrift store chalk board.
Method: Picked up a picture frame at the thrift store for cheap, about 2ft by 2ft. Very nice wooden frame. Pulled the glass out of the frame and after mixing the paint up to something close to an old green/black chalkboard color, I added some unsanded grout.
Problems: I think I added too much grout and now the surface is very gritty. I am on my second coat, and keep thinning the paint with Windex hoping to distribute the grout further for a smoother finish at the end.