This is a shop-limited product for GIFT ONLINE shop and Amazon Japan.I don't know those sites accept an international order.
りりかるなのは でっかいぬいぐるみシリーズ1 たかまちなのは(Lyrical Nanoha Big plushie series 1 Takamachi Nanoha) by GIFT
http://blog.livedoor.jp/geek/archives/51054924.html
comparison between big ver and normal ver
comparison with a person