niku_miku_(nankai)
English "Meat Miku", an alternate design of Hatsune Miku by Nankai (nankai san).
Her hair and necktie are made of raw meat, her sleeves are transparent like shrink wrap and instead of her arm tattoo she has a discount sticker.
She's sometimes referred to by the codename "2939" (2 = ni, 9 = ku).