Two 7x9 inch pieces of outer fabric, two 7x9 inch pieces of lining fabric.
For more advanced, cute variations, you can incorporate 3D plush elements. Part 1- Cutezip
Fold the fabrics back to reveal the zipper and press with an iron for a crisp edge. Two 7x9 inch pieces of outer fabric, two
Open the zipper halfway (crucial step), pin outer fabrics together and lining fabrics together, then sew around the entire perimeter, leaving a 2-inch gap in the lining for turning. then sew around the entire perimeter
Repeat steps 2 and 3 for the other side of the zipper with the remaining two pieces of fabric.