I have done it, no problem, simply sew a seam 1/2 inch behind the rag, trim off the rag, the attach your new additions and watch him grow some more... Don't those little guys love those rag quilts. I made one three years ago for my two grandsons and they are still dragging it around... They don't care about matching,fabrics or color fading, they are just great blankies... Happy New Year to all!