Character's Mouth

I was looking through this book for my typography project when I cam across a great piece on "Lanuage: the spoken system".

It shows a great example of how animator Nick Park created a set of interchangeable mouths to recreate the lip shapes of human speech for Wallace.

I think this would be a great idea for me if I chose to do the cutout character. I would not have to keep changing the whole character everytime he talked, I could just add on the appropriate mouth to his face.

There was also an example of humans talking and how their mouth changes when using different vowels and consonants.

So I thought this woul be useful information to know as I will be looking at my charter's talking parts and mouth movements next.