Rachel from Nest Full of Eggs shows how you can turn newborn onesies into clothes for an American Girl Doll or other 18-inch doll. It’s fairly easy to find newborn onesies in good condition at yard sales or resale events. Parents are often over-gifted with clothes in newborn size, and babies rarely stay that size long enough for them to get more than just a couple of wears. One easy seam will turn a onesie into either a top or a dress for the doll. Go to Nest Full of Eggs for the tute.