There is no way to make yourself a Vocaloid unless you approach a company like Crypton or Power FX and they somehow agree to make you a Vocaloid, which is unlikely.
Oh. Well, I meant to ask, "Can I make a request for the MMD (MikuMikuDance) Bad Apple video?".
I'm making a request for models. I was thinking Seto Kaiba and Sailor Moon. :)
I'm sure you could find models for both if you search them on the MMD wiki. As well as other things you may need for the video.
Okay. Thanks. :)