These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Bernard, the boy-turned-goat-turned-hot-chick, who is very happy to be helping Yvaine undress. Though it's not really Les Yay in this case since, again, Bernard is actually a boy, just a girl when this is transpiring.
And in a much more creepy sense, Lamia and Yvaine pretty early on. The massage scene, anyone?
One-Scene Wonder: Peter O'Toole as the delightfully soft-spoken, black-hearted King of Stormhold, who has encouraged his seven sons to kill each other for years. He is disappointed that more than one of his sons is still standing when he's on his deathbed.
The King: Of my seven sons there are four of you today still standing - this is quite a break with tradition, I had twelve brothers-
Septimus: And you killed them all for your throne before your father, the king, even felt poorly.
Visual Effects of Awesome - The epicness when Lamia kills Septimus by throwing his voodoo doll into a pond and thus making Septimus FLOAT IN MID-AIR has to be seen to be truly appreciated.
Not as dramatic, but almost as impressive, is the scene where Yvaine tries to maul the witch Sal only to bounce off her like a magnet. Except with sparks. How the hell did they do that?
She has a rope/tether connected to her back which supports her weight and allows her to lean forward. The rope goes straight back behind her; if you look very carefully, you can see the background swim/blur slightly where they edited out the rope. As far as her hands bouncing off the shield, she might have just been miming that, and obviously they CG'd in the effects.