This project comes from Instructables user Facci Designs. It only requires some basic sewing skills and some blackboard oil cloth. You just cut it up, sew it together, and you’ve got a lunch bag you can write on with chalk. That’s really handy for leaving notes for your kids, or writing an aggressive message to your office food thief. For the step-by-step how-to, check out the full post at Instructables.
Blackboard Oil Cloth Lunchbag [Instructables]