Heart-Sealed Paper Envelope

The completed model, shown from another angle to help check its shape and proportions.

The completed model, shown from another angle to help check its shape and proportions.

1. 1

   Fold the large square in half in both directions and reopen it. Fold the bottom edge upward along the lower guide, then fold it upward once more as pictured.

2. 2

   Fold the lower strip upward again. Fold its two corners inward, then bring the side edges to the center. Fold the upper corners toward the middle.

3. 3

   Fold the upper triangular flap downward. Tuck its point into the pocket formed by the lower layers.

4. 4

   Crease the small square in half in both directions. With the pale side up, fold the lower edge to the center line, then turn the paper over.

5. 5

   Fold the two lower sides toward the center to form a point. Turn the paper over and fold upward as shown, then turn it over again.

6. 6

   Lift the left pocket and squash it flat. Fold its corner to the right along the guide. Repeat symmetrically on the other side.

7. 7

   Fold both outer sides toward the center. Turn the model over and fold the small top corners behind to round the two lobes.

8. 8

   Place the finished heart on the envelope flap. Use a little glue to hold it in place if desired.

The completed model, shown from another angle to help check its shape and proportions.

The completed model, shown from another angle to help check its shape and proportions.