I have always been intrigued by the webs generator sites. My favourites were the name generators, which caused some hilarity in the staff room when we gave Star Wars names to teachers and senior leaders. Other generators are listed below:
The Slogan Generator
How I remember being bereft of slogan examples when I was trying to explain the meaning of the word.
And this is my current favourite:
The Newspaper clipping generator
London Underground Sign Generator
Find a whole host of generator s @ the generator blog