I have seen these, and yes, they are just the front of the garment. So you would cut down the side seams and the backs of the sleeves. Cut so you leave a little bit more than half the front of the item so you can fold over the raw edges. I guess I'm surprised that you broke a needle. I can't imagine a baby garment that was that thick, unless she gave you snow suits or Oshkosh overalls...Tying is a great idea, or maybe sew some buttons on both sides.