Sega's Nesoberi plushes come in various sizes. Smalls are about 13-15m. A medium sized is 30cm. Double large are 50cm. Then, there's Tera Jumbo ones, which are a body-huggable 100cm. So, maybe not life sized, but more than half way there for most anime characters.
A Love Live! Sunshine!! Chika Takami is on sale through November 27th, selling at 19,800 (before tax) ahead of a March release.
See the full line at http://segaplaza.jp/info/page.php?data_id=123
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