The discussion took much longer than expected before the dragons came to an agreement.
With how dependent most humans were on many of these products, the changes would undoubtedly spread like wildfire. And so, product and brands were picked, including fast food (and food in general), make-up, clothing, and much more.
And so, the very next day, human civilization was doomed to fall apart.
From the normal, European dragon, to sea serpents, Chinese dragons, wyverns and many other dragon sub-species. Curiously, not that the dragons themselves gave it too much though, the human's age and/or gender could also change during the transformation. The cause is still unknown.