She's gotten 2 of the 4 done!
I opted for convertible/infinity dresses so that they would be more re-wearable and look decent on multiple body shapes. Come to find out, it's a fairly simple pattern. Since we picked the fabric ourselves, they're not too thin. It's made from a rayon cotton blend.
Total cost for 4 dresses, sister's labor (she does it for a living), and notions: $190
There will probably be enough fabric leftover for a flower girl dress too. I ordered a couple extra yards just in case something went funky.
So here's a pic. She had a friend model it. I like how flowy the skirt looks! Maybe I should have had her make me one too!