The outer layer of each of these ukulele cases is made of vintage wool, and the inner lining is a quilted sandwich using coordinating fabric. I drafted the pattern using a tenor ukulele, and integrated instructions from a few different tutorials in order to design the cases. The construction was quite challenging due to the shape of the case and the thickness of the fabric, particularly when inserting the zipper. The cases are still somewhat in progress, as I still need to design and attach straps.