Step 4: Attach the Zipper
Place the painted graphic right side facing up on a flat surface. Place the other identical size piece of fabric on top, with the right side facing down or toward the graphic. Make sure all sides match up evenly.
Place the zipper along the bottom edge of the two fabric pieces. Pin both sides of the zipper to the fabric so that the top side of the zipper is pinned to the top piece of fabric and the bottom side of the zipper is pinned to the bottom piece of fabric. With a zipper foot attachment on your sewing machine, sew a straight line along one side of the zipper, removing the pins as you go. Repeat the process for the other side, moving the zipper foot to the other side as needed.
Secure both ends of the zipper with several stitches about 1/2 inch long, perpendicular to the zipper length. This prevents the zipper handle from sliding off and keeps both sides of the zipper aligned. Keep the zipper open before going on to the next step.