I can't remember, you'll have to buy the multi-million selling book to find out. It looks like this. Keep an eye out for the sequel 'Do Bats have Bollocks' currently in production...
These were ideas for WPP's magazine on the subject of 'Creative Thinking'. Despite one of the better entries suggesting "using a light bulb to represent creative thinking is not creative thinking", it was won by a picture of a lighbulb.