How to make a sundress for your american girl doll

1.wrap a piece of fabric around your doll make sure it is very stretchy.
2.and sew the back
3.then take two scraps or some ribbon and you can either make a halter neck by sewing the ribbon or scrap by making it come out like a v and tie it in the back for a normal sundress sew a piece of ribbon or a scrap across the shoulder.  .