www.mindtools.com/pages/article/newTED_07.htm
en.wikipedia.org/wiki/De_Bono_Hats
www.lyndacurtin.com/programs/six_thinking_hats/some_global_examples_of_de_bono's_tools_in_use.asp
www.members.optusnet.com.au/charles57/Creative/Techniques/sixhats.htm
Here is a real life example of using the Six Thinking Hats method in the graphic design industry.

When he thought of the idea, he wore the Red Hat. He was all like, 'oh, dude, I'm going to draw like the awesomest dog ever. Ever.'
Tane Richardson allowed himself to become enveloped by the sheer emotive enthusiasm for the idea. He promptly opened windows paint, and drew this.

Finished, Tane reflected on the drawing, quickly seizing the Blue Hat to decide which Hat he would look sexiest in next. He decided there was room for improvement, and put on the White Hat to analyze the situation.
In the White Hat, Tane deduced these stone hard facts:
-He is not very good at drawing dogs, cool or otherwise.
-He should google some dog pics and use them as reference. And then make them cooler.

Still wearing the White Hat, Tane traced the picture quite strictly and painstakingly to produce this:

In the Yellow Hat, he liked what he saw.
Tane put on his expensive new Black Hat, and looked again.
He didn't like what he saw.
He put on his Green Hat to figure out a lateral way around this.
He decided Photoshop was for losers and moved on to Illustrator. There, drawing on some of the last remaining droplets of passion he had for the project, Tane produced this:

He put his Yellow Hat back on and pointed out the positive aspects of the image:
- It looks like a dog.
-The lines look clean.
Then using the Black Hat, he decided:
-It looks shoddily drawn, and badly planned.
-It is a highly uncool dog.
Tane put on the White Hat to analyze the situation once more, and decided:
-This is hopeless.
Eventually Tane Richardson gave up.
He took all the hats off, shut down his computer, and had a long cry.