Cross-Stitch the Design
Center and stitch chart (available, below) on linen. Separate floss and use two strands for cross-stitches and backstitches, working stitches over two threads of fabric. Press finished piece on wrong side.
Stitch the Ornament
Using a water-soluble marking pen and the heart outline on stitch chart as a guide, draw heart shape on back of stitched piece.
Place cross-stitched linen atop red cotton fabric with right sides together. Sew on marking-pen line, leaving an opening along one side for turning. Cut out heart 1/2 inch beyond stitching. Clip into curves. Do not turn right side out.
Finish the Ornament
Turn heart right side out. Stuff with fiberfill. Sew opening closed. Hand-sew a ribbon hanging loop to back of ornament.