As Andrea suggested, I made a sunglasses case. The inner fabric is left over from the multi-color baby quilt and the outer fabric is left over from another project I will post about soon. It is lined with a very heavy interfacing that gives it a nice stiffness that would protect the sunglasses, but makes it kind of rigid, so it probably needs to be bigger to accommodate other sunglasses. Mine fit, but it is a snug fit and they aren't that big. The flap closes with Velcro.
All in all, I am pretty happy with it other than the size. Also, I am not satisfied with the top stitching and how it lined up. I think next time I won't top stitch until I put the pieces together so I don't have the problem with the stitches lining up like in the picture below. I also thought about using clear thread, but I kind of like the stitching contrast so I think I'll try it that way again. I am also not sure if I like the stitching from the Velcro showing on the top of the flap. I might attach the Velcro to the inner fabric before I put it together so that it doesn't show on the outside. I might also consider a non-flap version. Please leave me a comment if you have any suggestions!