I'm quite new to WHFB and even newer to Dwarves (it's more of a 5 o'clock shadow than a beard). I'm trying to catch up on the fluff, but not everything made it into the new book (I think). Many of the models have small, stylized dwarven faces hanging from various things in addition to runes and whatnot. My very cursory search hasn't turned up much about what these things are, but maybe they are called ancestors? What significance do these things have? I'm sure it's nothing in game, but maybe there is a good bit of fluff?