Chuck Jones in his book Chuck Amuck gives the rules for “yes sessions” at Termite Terrace where he made those wonderful Warner Brothers cartoons. He called them yes sessions because the word “no” was banned. They were two hour story jams where everyone contributed to the ideas that would appear on the screen.
I wonder if IDEO has ever looked at that book. You can read it online through Googlebooks at https://books.google.com/books?id=NJzAdheaSc0C&pg=PA151&lpg=PA151&dq=Chuck+Amuck+%2B+brainstorming&source=bl&ots=qcaboeLI8F&sig=avM-cmy43sgx_ytLEgO-7G-WjME&hl=en&sa=X&ved=0ahUKEwjs2eqV5e3UAhWEcz4KHc_BAVgQ6AEIKjAB#v=onepage&q=Chuck%20Amuck%20%2B%20brainstorming&f=false
