Hatsune Miku
Since the success of her Vocaloid 2 package led to an expansion of marketing possibilities, most of the mass marketing has come after her initial release as a response to her popularity and has been on going since 2008. Even with the addition of other Character Vocals, Miku's name continues to be used as the primary source of marketing for Crypton Future Media, to the point where most products for their Vocaloid related products will usually only feature Hatsune Miku's name. In March 2012, the Nomura Research Institute estimated that the sales of all Hatsune Miku brand goods added up into the region of since her release in 2007. Her name is easily the most recognizable of all Vocaloids.
Mimikyu
Mimikyu is a small Pokémon, standing at eight inches tall, and is hidden almost entirely underneath a disguise. It has beady black eyes which can be seen through its disguise, and a vague semblance of a foot or lower body can be seen at the hem of its disguise. It will occasionally extend a black appendage from beneath the disguise, which has black eyes, red cheeks, a squiggly black mouth, a lightning bolt-shaped stick that resembles a tail, and ears that are colored black on the top. According to the official Pokémon website, Mimikyu is "dreadfully lonely", and in an effort to emulate the popularity of Pikachu, wears the Pikachu-like costume in order to make friends. Mimikyu is drawn to dark or dimly lit areas, and its health will decline if exposed to sunlight.