"Snow Miku" twitpic from kmatsu75
"Miku" is Hatsune Miku, a "vocaloid character" that's a synthesized voice. It's some kind of software that somehow creates J-pop songs. Read more about it here. And go here if you want to see her frolic in the snow.
Here's a little report about the Yuki Matsuri I found on YouTube:
See more pictures and videos on the website Pink Tenacle.
What happens to the sculptures when the festival ends tomorrow? Do they sit around and melt, or are they bulldozed?