Using a thin coat of crafts glue or spray adhesive, glue a leaf skeleton to the center of a 4x6-inch piece of paper. Place it under wax paper and top with a stack of books until glue is dry.
Mark the center on both sides of the 6-inch edge of the paper. Place the paper, leaf side up, on a cutting mat (or old magazine). Align the metal edge of a ruler along the pencil marks; lightly score the paper with a crafts knife on each side of the leaf. Do not score through the leaf. Cut around the shape of the leaf on the paper above the scored line.
Below the leaf stem, center and cut two 1/4-inch vertical slits 3/16 inch apart. Weave twig through the slits.
Fold card in half along the scored line, with the top of the leaf extending above the fold.