This is a pretty easy dress to sew and your daughter will enjoy to twirl in it for hours.
You can make it in any size really and the starting point is the circle skirt which you can find here. For all the instruction and how to, just click on the photo below.
and in case you are interested there is a small interview on the Figgy's blog where I answer a few questions about sewing and I even share a recipe! Have fun!