DIY –T Shirt Pattern For Barbie « Helen's Doll Saga - probably for normal barbie, but I'm sure I could change it for curvy barbie.
Barbie Clothes Patterns: Free Designs & Tutorials - So Sew Easy
Barbie Panties and Gloves Patterns - Adjust the size for other dolls.
Barbie socks from old gloves. How clever! - this is a lovely site and has information on all sorts of doll related things.