The technique was invented by Surrealists and is similar to an old parlor game called Consequences in which players write in turn on a sheet of paper, fold it to conceal part of the writing, and then pass it to the next player for a further contribution. Surrealism principal founder André Breton reported that it started in fun, but became playful and eventually enriching. Breton said the diversion started about 1925.
Here's a few examples...
There are many childrens books which utilize this concept-
And a website that was developed for a childrens' Hospice in London-
Visit the GO RED website HERE.
Get together with a few friends and give this game a try!