Cut out animation drawing exercise

What I did to achieve this 

After we drew the image we use a selection of mouths and then used that selection by putting them in the correct sequence to spell out the correct word. Using shot by shot frames and the use of stop motion animation we then used the sequence to animate the picture correctly to create the correct flow. However the main use of stop motion animation that we used was cut out animation. This is because of the number of objects used to be more specific drawn pictures in order to achieve this.
http://www.youtube.com/watch?v=0QYjFzFvJk4 Here's an example of another use of cut out animation in a Guinness advert