I did it too! I've made a couple dresses for my toddler daughter, but this is the first thing I've done for myself, and I LOVE it! Used two 3XL t-shirts I picked up for mega cheap at Target on clearance ($5 each). I'm usually a size 16W in a dress, and this fits great and really shows off the curves.
This is my first Craftster post, so I can't post a pic. Its a shame b/c, as a plus-sized girl I know how valuable it is to be able to see a real plus-size pic.