I'm in the process of making a memory quilt (lap size) from my BIL's shirts. Some are dress, some are flannel, some are knit. I;m using a simple nine patch pattern, with the shirt fabric as patches, but I purchased some coordinating sashing fabric to use with star-shaped corner stones of fabric from his suede cloth traveling vest. Because there are so many different weights of fabrics, I have interfaced the lighter ones with fusible knit interfacing. It is very light and supple, but gives the dress shirts more heft to play with the flannels and knits! I wanted to use just his shirts, but found I needed some more contrast and a color to pull it all together. I gave myself permission to add one fabric! I will use lightweight batting and flannel on the back for comfort. Hope these ideas give you something to think about!