Pictured above is a darling Petite Blythe (Littlest Pet Shop version). I've tried on a few of my small doll items to see what will fit her. In the picture above, she is wearing an Amelia Thimble nightgown. The length of the nightgown and sleeves are a little long for the doll, but it still looks quite cute on her. While quite a few people don't seem to like the Littlest Pet Shop (LPS) Blythe compared to the Petite Blythe, I actually prefer one important aspect of the LPS Blythe -- the shoes! Unlike Petite Blythe, the LPS Blythe have shoes that come off the dolls and I love exchanging the shoes. Pictured below are some Polly Pocket shoes and accessories I've paired with a LPS Blythe.
Personally, I try to avoid some of the backless pumps from Polly Pocket because they look a little too big on the LPS Blythe. Many of the other Polly Pocket accessories go great with LPS Blythe too.
Interested in more information, patterns, and crafts for tiny dolls? Check out Dolly Bureau Volume 3: All About Tiny Dolls. There is more information about Petite Blythe dolls in the book, including OOAK dolls, fashions, and crafts.