Alice in Wonderland/Nightmare Fuel

In Alice in Wonderland, the Walrus and the Carpenter sequence. (Which is actually from the original book, and it's no less creepy then what Disney came up with.)
The "mad watch" scene entirely too intense, with all the screaming and half-crazed profile shots.
The Queen of Hearts, specifically the "Painting the Roses Red/Off with their heads!" scene.
The Cheshire Cat and the "Happy UnBirthday" sequence.
The scene at the end where Alice is running up a staircase, and she grabs a doorknob, only to have the door come to life and complain about her grabbing its nose. Mild and funny, right? HA. Try being six years old and having a crippling phobia of doors.
The drugged-up, blue caterpillar... They're just talking and then "I am exacicitually three inches HIGH, and THAT IS A VERY GOOD HEIGHT, INDEED!!!" *flashes psychedelic colors and explodes*
Tweedledum and Tweedledee sneaking up on Alice, and the flowers turning on her and chasing her away.
That cage-bird-thing in the Tulgey Wood.
Alice almost drowning in her own tears. Not only is she so traumatized by everything so far that she bursts into tears, but it almost kills her.

Jan Svankmajer's 1988 adaptation, especially the White Rabbit.
Some of the animal characters in the 1972 version with Fiona Fullerton look pretty unnatural as well.
The Cheshire Cat as portrayed in BKN's Alice in Wonderland: What's the Matter with Hatter. And you thought the McGee version was creepy. And this one's supposed to be comic relief!
And we can't forget the Jabberwock in the 1985 made-for-TV version.
What about the March Hare in the 1999 Hallmark version? According to Wikipedia, his costume even scared the actress who played Alice!