There’s been a huge response on the web to the new Conservative Party poster featuring David Cameron. Ranging from questions around policy, to accusations of air-brushing, to banal graffiti (digital and otherwise). Here’s a selection of the many I’ve come across.
politicaladvertising.co.uk 
David Cameron has a great, healthy, glowing complexion, he doesn’t need to be air brushed. More importantly, it is what is between his ears that matters, (as Boris Johnson said apropos of another matter).
http://cyberboris.wordpress.com/2010/01/14/jokes-of-the-week/
Some jokes about that poster!