Скопипастим.
Some stuff from the Inucurry book:

Fake town's children are not witch's servants but more like a phenomenon that occured in the fake town. Incarnations of magic and karma that overflowed from Homura.
Children's characters fit their names, more or less. They're dress-up dolls Homura used to play with. In Homura's rewritten world, dolls keep playing around self-willingly.
The children all get along. It wasn't shown in the story, but Ibari&Nekura, Yakimochi&Namake, Mie&Okubyou are usually together.
Reiketsu and Noroma have empty gazes. Noroma's head is always tilted.

Fake town's children love Madoka, but not the Law of Cycles. The Devil is alright. Only Manuke loves everyone.
Children like watching dramas on the box in the teahouse. Their favorite one is "The pumpkin that was left all alone because of the goddess". They don't like the one with the mermaid.

There is also a part with 14 dolls introductions, but the end is different:
From now and forever
Before learning of that radiance, before losing that radiance
Here is just a festival on the eve before. An eve before failure.
All that's left is to wait for the funeral procession.
Now, now, pure white virtuous goddess. Here, here, she crosses over at this late hour, leaving an extremely deep impression. But, anyhow, aren't you overlooking something a bit? Lined up here is the troupe of mortal world. We definitely cannot become human, even if we mourn, resent, destroy and despair, we won't become human. Passion drives the bones, only depression washes the entrails. Anyway, instead we can make a lot of people like those over there. Will you forgive us then?

Also Nagisa's magic is a horn that is supposed to make her more self-assertive and greedy because she regrets wishing for just a single cheesecake.
Witch's servants and barrier are born from the witch's unconscious. The witch summons them. Again, they're getting excited on their own. Some of them obey the witch, some don't. The witch herself doesn't really understand her own magic or what they are.

Hello there,
Embarrassing Good-for-nothing-sama.
Sneered at, stepped on,
And also detested.
The ashes are sown and the flowers are scattered.
Do a makeover, put the mourning clothes on.
From now, from here the funeral procession starts.
These pupils are full of envy,
These teeth gnaw at the future.

Reasons why familiars attack humans:
1) The ones that don't get magic from the witch - to feed
2) Because they hate humans or for witch's sake
3) For fun
4) They follow their roles, and people die somehow because of it
Fake town's children are the 3rd type. The rest are the 4th.
All dolls have the same face (the same base doll).