Are Utauloids welcome? If so, then I would love to come as Kasane Teto^^♥
Of course! I would say anything directly related to Vocaloid is okay, so Utauloids are more than welcome.
To clear this up as well (in case I haven't mentioned it or it's simply been a while since the last time that I have), I consider Black Rock Shooter characters/versions of characters to be a gray area because Black Rock Shooter is NOT Miku; however, it would be highly unfair to place limits on everyone's creativity- I remember last year we did have a couple of Black Rock Kaitos. Additionally, I feel that the Black Rock Shooter and Vocaloid fandoms are fairly connected, and since there is no separate BRS gathering, it's only fair to let BRS character cosplayers join in on ours, right? c:
However, outside characters that have MMD models are not necessarily connected to the fandom directly, because you can make pretty much anything into an MMD model (Tiger and Bunny characters, Pokemon characters, etc.) so I'm going to say no on that one, if that makes sense to you guys.