Diary: The coolest cat in ads

Agencies love any excuse to celebrate and DDB UK rightly felt that the 20th anniversary of Felix the Cat this month deserved a spot of purrr-tying.

The shop painted its reception wall to mimic a living room that featured the moggie on TV and, a touch bizarrely, also on the armchair. It had an exhibition of sketches in honour of the feline's big day, which it fondly describes as "a black and white, animated bundle of scruff, fun and mischief". DDB says that in the UK, only ten campaigns have been running for more than 15 years, including Felix the Cat. Others on a postcard, please.