Rock.Stone.Tween Treasures?

Deciding whether to tap into the tween jewelry market so we've created some designs as prototypes to test the waters. Those tween girls are a tricky bunch. Here's what we have so far.

My tween son thinks his contemporaries will like these, but then again, maybe they won't. Decisive much? So we're test marketing to our target demographic to get opinions right from the horse's mouth. Any opinions of your own? Please share.