Sew the Fixture
Pin the button in place. Use a dot of hot glue to secure the point of the pin to the closing fixtures. Sew the button in place by sewing around the pin and through the wire of the closing fixture; this way, even if the pin comes loose, the button will remain securely in place. Use at least eight stitches on each side and eight more over the length of the pin, threading each stitch through the fabric. Sew from one end to the other.