I saw a great video the other day explaining the working culture at Spoitfy and later that day on Twitter I saw a nice image showing how they they build products and it really resonated with me and the message we were trying to get across in this video. 
I feel this is a great image to use with customers to help explain what I think is the best way to approach building a new product. I think it might also be better than my previous favourite the Agile Mona Lisa. 
Update - part 2 has just been released