Have you heard of American Girl Dolls? Read about them here: http://www.americangirlplace.com/agp_home.php
My granddaughter has two of them, one is named Jess and I forgot the other. In the store, they have, in addition to more clothes and accessories than Saks Fifth Avenue, a hair salon for the dolls. A hair salon for dolls!! She wanted to have her dolls' hair done, and we thought it would be cost prohibitive, but it fit within her budget. The photos show the doll hair stylists working on various dolls, while their owners stand and watch how it is done. It really is a treat to watch them. The doll heads are about 1/4 the size of a human head, so everything has to be precise, but on a smaller scale.
One simple pony tail costs $10, and includes 2 hair bows and a hair clip. I didn't make a note of the other prices, but 2 pony tails were $20, I think, and French braids and more elaborate hairstyles went up on a sliding scale. I am constantly amazed at the amounts of money people are willing to toss toward this kind of thing.
They have clothing for children to match those of their dolls. There are accessories of every possible thing you can imagine. It is an industry, and a big moneymaker. Wish I had thought of it first!