Buy a framed picture with a nice frame from a thrift store, preferably something that no one would really want anymore and doesn't have any value (like a kitsch 80's picture of a 4th of July wreath for example...). Remove the glass and dispose of it somehow (or reuse). Then remove the picture and paint over it with two layers of chalkboard paint.
Place the "chalkboard" back in the frame and now you've got a fancy little chalkboard to hang on the wall. You can paint the frame, too, if you want.
I give the credit to my ingenious sister and her fascinating house.