Layer two pieces of brown paper and trace desired shapes onto the top piece. Cut out shapes through both layers.
Place matching shapes together and machine-sew around all sides, using brown thread and a 1/4-inch seam allowance; stop stitching about 1 inch away from beginning stitch. Without removing pieces from beneath the sewing machine presser foot, use a pencil or wooden skewer to lightly stuff the shape with polyester fiberfill through the opening. Continue stitching to close the opening, taking a few backstitches at the end to secure the stitches.
If desired, trim the seam allowances closer to the stitches. Thread embroidery floss through the holes of each button; tie the floss ends in a knot at the back of each button, and leave the ends a little long. Glue the buttons to the fronts of the shapes.
Use a darning needle and twine to stitch a hanging loop at the top of each ornament; tie together ends of twine. Add details, such as the gingerbread man's eyes, to the ornaments using a black fine-tip permanent marker.