With its very own thread, here's this year's competition.
Please post here with your Halloween name change. You've got until Friday Oct 24.
MNHQ will do a shortlist of our favourites on Mon 27 Oct, and put up a poll for you to vote for your favourite from the shortlist.
The winner will be announced on Friday 31 October.
And, like last year, the judges' decision will be final
Now I'll go and ask BigTech to press the button and unleash the Halloween emoticons.
Note this post has been edited to fix an incorrect date - as such some of what follows might not make much sense