Dec '04 - Aug '06
Here's a picture of the Bartlett Christmas BBQ, Friday 17th December 2004. It's from my cameraphone, so please forgive the low quality.
I really think it's one of the greatest ideas ever: an outdoor BBQ in central London in December.
I'm not sure quite who organises it, but I know the workshop team are heavily involved. The whole workshop and basement outdoor area are cleared out for it. The outdoor area has a bar and a couple of big BBQs (people bring their own food). The workshop becomes a dancefloor.