I sew my own clothing, so wouldn't buy any, but one thing I think would be GREAT would be to offer outfits that are mentioned in the AG books but not really available. Here's a list I've assembled of some:
http://www.angelfire.com/mi/FAST/dresses.html
There's also an example there, of one of the dresses in Molly's books that was never made into a real dress. Believe it or not, it's not red--it's purple!

One thing to watch out for is that most pattern companies and even some fabric companies (!!!) forbid that their patterns or prints be used or adapted for resale. So you'll have to make your own patterns, and I bet that's a big challenge, but it sounds like you know how! [img]biggrin.gif[/img] The fabric companies usually put a little warning in the fabric margin if it can't be used for resale. (I was shocked about the fabric . . . patterns, I understand, but fabric?)

Anyway, good luck! [img]biggrin.gif[/img]