Draw a circle in the paper the same size of the mason jar.
Place the circle over the top of the mason jar and fold down the side.
Take of and fit the paper in the in the top ring of the mason jar
Screw in lid
Make a slit in the top of the paper big enough to drop money through.
Cut ribbon on bit of an angle.
Tie the ribbon around the top of the jar.
Tie in to a bow, and you are ready to start adding money