Measure and cut a 9?x 4? three rectangles from both fabrics. Now cut out a heart in the center of red fabric.
Keeping the hearts lined up, sew closely around the outer edge of heart cut out. Carefully add small slits all around the inner heart.
Push one side into the other and press. Then add small tabs to the end of a 9? section of zipper. Lay a piece of the polka dot fabric. Lay the zipper right side down over the cut out layer and then finish with a lining panel right side down.
Repeat the last step on the other side. Use an iron to crease fabric, creating a hem over the zipper. Match corners of the outside and lining of pencil holder and hold in place with pins.
Starting with the lining side, sew around the edges and make sure to leave a 3? opening to turn the bag right side out. Turn bag right side out and Push lining into the bag and press all the seams to finish. Add all your favorite school supplies to your heart fabric DIY pencil holder and enjoy!