Promise. Let's all just agree on this—thinking of something cool and fun and trendy (or whatever) to buy for a tween girl is intimidating. Between their ~attitudes~ and their, uh, scarily up-to ...

This makes tween girls extremely fun to give gifts to ... Olympia, a 10-year-old in Jersey City, recommended a pack of puffy paint, the squirtable paint that dries with a 3-D effect and can ...