I've been living in my Mexican dresses this last trimester, although I never venture far from home in them. This one is from Feathers in Austin and it's somewhere between maxi and midi length so I hadn't considered wearing it post-baby. That is until I saw Lucy Laucht looking chic in her little Paul & Joe number! With a little hemming, I'm thinking there might be a future for my maternity mumus this summer!!
Living in Texas, you can find vintage Mexican dresses pretty easily but there's also a good selection on Etsy and Ebay. Search 'Mexican Embroidered Dress' and look for key words like 100% cotton and hand embroidered.