These are a couple I use. The second one has a scalloped edge. I don't always put a center piece in each block, it can make the quilt really heavy. I make a lot of rag quilts out of fleece too, the edges don't "rag" but they still look good. I've also made them with just one block vs. two blocks sewed together for an even lighter quilt.
When it's time to wash/dry the finished flannel quilt, I put it in the dryer and set a timer for 10 minutes. Every 10 minutes I stop the dryer and clean out the lint trap. That way I don't take the chance something will get clogged up.
http://greenappleorchard.blogspot.co...-tutorial.html
http://www.sew4home.com/projects/bed...oped-rag-quilt