Preparation
Bone folderRectangular piece of paper (three times as wide as it is long)Twine or string
Using the bone folder, fold the paper into thirds, making a valley fold on one side and a mountain fold on the other. Fold the resulting square in half diagonally, then unfold back to a rectangle.Fold each of the three “panels” in half diagonally from the top and bottom; unfold.Pinch the left panel into a squash fold to form a triangle shape. Repeat with remaining two panels; tie up with twine.
11-by-17-inch matte paper in Green Tea ($13 for 50 sheets paperpresentation.com), Londonderry thread (S826, $2.75, johnnealbooks.com).