Of course, the baby needed a gift bag, too. I made that up as I sewed and I'm happy with the results. I used a little homemade bias binding on the side to facilitate an easier opening and a ribbon as the closure. I tacked the ribbon within the pocket to keep it from being pulled out.
I actually think the bag will be handy for carrying a spare outfit in the diaper bag and I may have to make a few for myself.