Some day I am going to try this idea by creating a flash diffuser out of a milk jug. I have found many times where my flash is much too harsh. Of course, as in my Flash Compensation Tutorial, the flash can be reduced in the camera settings, but it does not always work well. Looking online, I see flash diffusers can run from $20 to $60 and more.
What do you think of this idea? Can someone try it and tell me if it works?