I have used a magnetic closure on the Bow Tucks bag. I use a fusible batting on the lining pieces, then I quilt the lining (this is optional). After quilting the lining, I find the center top of both lining pieces, and measure down at least an inch or more and make a mark. I then reinforce behind each mark (on the batting side), with Pellon or anything with a lot of body, then install the magnetic closure on the fabric side of the lining, and sew the lining pieces together, leaving an opening on the bottom for turning. Now, following instructions, sew lining to bag.