avent breast shells aka "milk catchers"

-they catch milk that drips from opposite boob of one you're nursing on (wearing a bra is needed to hold it on)
-helps stock up your milk supply in fridge/freezer
-they also give new moms' sore nipples some relief

babies r us: http://www.toysrus.com/product/index.jsp?productId=2403352&prodFindSrc=search