We have this new chalkboard fabric at the shop. It's great! It works just like a chalkboard, but it's vinyl (I think) so it's flexible. It doesn't have give like fabric, but otherwise you can sew right through it. We also have iron-on vinyl that you can adhere to fabric to make it waterproof. In this case, it's making the fabric chalkproof so it won't get stained. I tested a pattern that we'll have available during our gift fair which is the weekend of September 19th. It has a little pocket on the side for chalk and a cloth to erase.
Eventually it will go to Molly. The good news is that I made it on her first day of school, so it will be a surprise if I give it to her during the holidays. Here's a photo of her when I dropped her off at school. It's her first day of kindergarten, though it's still at the same school (with the same teacher and classroom) that she had last year.