I used one of the most wonderful tutorials to make a girl's dress from a button up shirt. The tutorial is on the craftster forum . I didn't follow it exactly, as far as the sleeves and trim, but plan on making more and including those elements. I started with a boys shirt, size 4T or 5T, I'm not certain. The finished dress is about a size 0-3 months. This is the back of the dress:
Isn't that such a clever idea?!