Well, it seems I forgot one important thing about NaNoWriMo: It no longer exists. Or at least, the site that was its headquarters no longer exists. I might still do it--or do a “lite” version of it--on my own, but I’ll miss the encouraging emails and live write-ins.
Sadly, I don’t think in poem style generally. Sounds like it would be fun. I have a couple stories that could theoretically be Halloween themed (dark vampire stuff), but not in poetic form.
Also not original fiction.