Sending blessings & strength to you & your children. I do hope your making the quilts will help your healing process. Just be sure to make a quilt for yourself to wrap up in also. You can use almost any clothing item in a memory quilt. You don't have to limit yourself to just cotton shirts. I have made several & have used pants T-shirts jackets & ties in these quilts. Whatever was given me I managed to incorporate into the quilts. The T-shirts & ties will need a fuse-able webbing on the back.