When I first heard the audio done by CautiosTrain of "Gooblygag" and that supercute voice of her five year old sister, I wanted to animate something, where we can observe the little girl while she is telling her story.  I think, by that we have a lot of opportunities in showing various numbers of facial expressions, even if the "model" is very simple. The next thing I would love to show, is the world she is talking about, oh and everything is happening/building itself behind her back. Shadows or silhouettes that may appear, smoke, growing things etc. Maybe at some points she can interact with her phantasie world or react (body language, facial expressions etc.)