I started my novel on November 18, and in fact made the 50,000 mark. On the 30th, in fact, writing 8600 words that day.
It's a draft I'm so far happy with. Space science fiction, near-ish future. Per my usual NaNoWriMo habits, it's currently "trunked", pending finishing at a later date. It doesn't have a title. It has a lot of plot kinks to work out. But the bones are there, and that's pretty cool.
