Board Thread:Poll Archive/@comment-30602727-20131016013218/@comment-24771943-20140501234732

offtopic a bit-  bringing up characters officially related to a Vocaloid,

We now have Vocanese (Tianyi and Yanhe), Vocalo Revolution (CUL), Ice Mountain(Kiyoteru), Anim.o.v.e(Lily), the other two Go!Go!575 characters (Matcha and Azuki), and the Tohoku other characters (Tohoku Zunko), http://zunko.jp/con_illust.html (The characters that are all the way at the bottom, which nobody in the western fandom ever seems to notice. They are quite popular in the Tohoku prefecture as they are other promotional/mascots to Tohoku, just like Zunko is.)

I just realized there are a lot of these characters if you're also counting the officially recognized derivatives, too.