Back in the 1980s, a concerted effort by 'red' town halls across the country in opposition to Thatcher's economic policies saw huge canvas banners appearing on the facades of public buildings carrying the latest local unemployment figures. City Hall, now the Elephant Aquarium, had a banner directly facing the Commons terrace. Once a week or so, the town clerks would be sent up to the rooftops with some new numbers and a pot of glue to update the totals.
Yesterday the Conservatives lit up Battersea Power Station to much the same effect (H/T and pic from the Speccie) - but using gobos rather than canvas banners. The advantage of a gobo is that the plate can be easily updated without the town clerk risking her life and her £200k salary on the rooftop. They are readily available.
So c'mon Boris, Stephen Greenhalgh and the rest of you - why isn't every Tory town hall in London illuminated at night with the borough's share of Brown's debt?
And pleeease don't tell me about either (a) advertising consent or (b) Maggie's outlawing of council funds for party politics. If Lewisham can spend squillions on a glossy mag that's nothing but a thinly disguised encomium for the Labour mayor I'm sure Hammersmith can run to a gobo.