I've made a number of these which turn out to be about 45" square. I cut a large paper heart, from a brown bag, free form, eyeball it and pin it as close to even center. Then I top stitch all around the outside of the heart. Just unpin the heart, you have an added accent to go with the topstitching around the edge. All babies need heart accents. . Here is one I made my little great nephew a few years back. The heart is hard to see though.
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