Purrs and chocolate for the 123 people who signed up!
The big list of Who's Writing What For Whom will be posted on my LJ at midnight on July 25/26, British time (five hours away and counting). Then you'll have 24 hours to write your drabble and add it as a comment on that post. Any prompts still unwritten at that point will become available as an open challenge for anyone who cares to grab one and pinch-hit.
Thanks to everyone who's been spreading the word about this - and please keep doing it, so we get lots and lots of readers for 12,300+ words of extremely miscellaneous HP-ficcage.