I modified a Barbie dress for Maudlynne.
She doesn't fit typical Barbie clothes, mind. This dress came from listing with several handmade items. I think it'd be really big on a Barbie, as it fits her perfectly. The snaps close nicely in the back.
White isn't really her color, but I think she enjoyed getting out of her red dress for a bit.
I'm going to buy her some Minifee clothes when I have money for them.