First sew the lining to the outer neck top. Pin both sides together right sides facing, using the pattern as a template sew around the outsides Leaving an opening in both the top and the bottom.Cut out. Clip curves and turn the right sides out. Tuck in the neck.
Turned out the right way.
Now measure the stopper insert, make it out of heavy cardboard and gather a piece of fabric around it.
Do the same thing with the tabs. This is done twice so make sure that you turn it over to make it symmetrical. Fold the tab at the bottom
Pin it onto the base. Ladder stitch it all together.
ladder stitch it into the neck.