I usually go to +Etsy for vintage but there is not much in the way of nursing clothes. There is, however, a great deal of beautiful handmade clothes created specifically for breastfeeding moms. I honestly didn't realize how much of my wardrobe wasn't breastfeeding compatible. You need easy access to the boob. Most of the dresses that I own would have to come off completely, and I can't strip every time HAM gets hungry. These sellers have some really creative clothes that are stylish AND functional.