2. If making a card, fold parchment paper in thirds; mark and cut heart opening, using pattern as a guide.
3. Position muslin under heart opening in card. Arrange and lightly glue shamrocks to muslin as shown on pattern. Remove fabric from card; lay organza atop shamrocks and muslin. Machine or hand-baste 3/8 inch from edges of layered fabrics; pink edges.
4. To shadow applique, use one strand of floss to outline the shamrocks and stems with small quilting stitches, sewing through both organza and muslin. Add three small straight stitches to the center of each shamrock. Center the design in the card opening; lightly glue in place.