The answers are now available from the January Mayor's Question Time. Let's start with this from One London:
Damian Hockney: Could the Mayor tell us how much the December 13, 2006 Peace Reception in City Hall cost, how much did CND and the Stop The War Coalition contribute and how much was paid for by the GLA or the Mayor's Office?
Could the Mayor tell us how many people attended the December 13, 2006 Peace Reception at City Hall?
Ken Livingstone: The Peace Reception cost £5,637.10. All costs were paid for from the International Affairs team budget within the Mayor's Office. CND and Stop the War Coalition helped staff the event and provided other in kind support.
Around 200 people attended the reception.
So around £28 per attendee, funded by the council tax payer. And can anybody say what the 'in kind support' provided by CND and Stop The War amounted to?