As a Mom For Modesty and a girls youth leader, I have really scouted out a bunch of internet sites to see if I can find something that would not only be modest, but fit our small budget.  I found this site that offers layering options for what is already out there, so you can be fashionable and modest.  They have camisoles and tees that come up higher and go down over the hips to put under a shirt that is either too low up top or too high down at the bottom.  Now to find something like this for little girls.