To make your own Kindle case, assemble various materials such as a hardcover book, tape, fabric, elastic and a glue gun. A hardcover book provides a good foundation because the material is stiff enough to protect a Kindle.
To make a Kindle case out of a hardcover book, you need 1/3 yard of quilted fabric, 3/8 inch iron-on adhesive tape, 3/8 inch elastic, a hardcover book larger than the Kindle and a glue gun. Use a knife to cut the pages out of the book, and run hot glue to narrow the spine. Lay the cover open, and cut the fabric to fit the Kindle. Make a pocket for the kindle. Figure out the height of the pocket, cut extra fabric off, and use iron-on tape to seal.
Turn the fabric over, and use iron-on tape again on all needed sides. Put the Kindle in the pocket and decide the position of the right edge. Cut off any extra fabric, and use iron-on tape on all needed sides to finish the pocket. Glue the left and bottom edges to the inside cover of the book. Flip the book, use iron-on tape and cut off extra material. Do the same thing along the top edge of the book, and hot-glue the rest of it in place. Place the Kindle opposite the pocket, and hot-glue the elastic to hold the Kindle in place.