I have spent hours looking for some crochet patterns for my granddaughter such as a simple cardigan, vest, tank top, or basically any kind of top I can make her to wear over tank tops, etc. for schools.
I love to crochet with thread or the thinner yarns and especially in 100% cotton.
I have searched everything possible on the internet and am hoping someone reads this that has patterns for her.
I think that you could use Doris Chan's Sweet Tea in a thinner yarn than called for and get a great top for a 9 year old to wear over another top. It is a top down pattern and so you can adjust for fit pretty easily. It's written up in in Everyday Crochet by Doris Chan if you can't find it here.