Idea one

Showing the concept of 'loop()'
Relate this into real life situations such as dancing which is a passion of mine.
My idea is to get one ballet dancer to perform a routine that is 8-10seconds long, after this is finished the dancer repeats this therefore showing a loop. But to get this more complex, each time the routine will become faster (going up a level each time).
This will be a simple way to show 'loop()' without using words and will be a self explanitory presentation, so that people who don't know anything about coding will be able to understand and relate.