For pants, my dd (also 10) likes
this type. There are other colors, as well.
How big is your dd? I know you said size 10, but my dd wears size 10 for some things and size 12 for others. Her long-sleeved jersey dresses from Gymboree that I got this past winter (mega sale - my first Gymbo things lol) are actually size 12, but go just past her knees. I actually prefer her Lands' End dresses, which are the same style, but longer (mid-calf). If you'd be interested in the Gymbo ones, since she can't wear them this winter, we could figure something out.
If not, no biggy, I just thought of it while writing this post, actually (originally just posting about the WM pants, thinking I had nothing to swap/sell, since my dd is also 10 lol).