It has towelling on the back so it can be used as a burp cloth or change mat. I also added some ribbon loops to the side so as he gets older it can be used as a mini blanket for him to snuggle in the car or pram.
I just made it pillow-case style (right sides together, sewing around the edge and leaving a gap to turn it right side out) and top-stitched around the edge. I didn't quilt it as I wanted to keep it as soft as possible. It measures approx 24" square.