I agree with dunster. I have made quilts from t-shirts and you need to iron on fusible to the back so the knit won't move during quilting. Go to your local quilt shop and explain what you are planning on making. They would have the best quality 100% cotton solid color fabrics including white. I would stay away from JoAnn's since most of the fabrics they sell are second quality. Good Luck !! Sounds like a fun project.