This Vocaloid paper craft is a chibi Neru Akita, created by Skullkid. There is another Neru Akita paper doll here: Vocaloid – Neru Akita & L-Gaim Mk2 Papercraft. Neru Akita is an officially recognized derivative. Her name is a play on words, Akita is taken from "get bored" while Neru from "go to bed".
In October of 2007, soon after Miku was released, a TV program in Japan degraded the users of Miku. As a result, Miku's pictures became unavailable to search in main search engines, and Miku's article was deleted from the Japanese Wikipedia at the same time.
This news became widespread or "flamed up" in 2ch, then many writings to lay the news to rest or "to put off the fire" followed. Soon other users made a personification character for these postings as "Akita Neru", which Smith Hioka, the designer, later finalized. Neru came to represent the tsundere culture of Vocaloid.
You can download this vocaloid papercraft here: Vocaloid - Neru Akita Chibi Free Papercraft Download