ohh well in that case a lot of bridesmaid dresses that are american come with a shawl to macth. i had to wear a dress with one and while the bride got married in church we wrapped the shawl around our shoulders and tied it in the back to kinda make a bolero/shrug out of it and keep our shoulders and back covered during the ceremony.
also jessica mcclintock dresses have a few with jackets even for young girls…that’s pretty muslim friendly stuff
i really like the choices at cache so check out Cach: Home
alfred angelo has a ton of stuff as well