Do you know Charles Fleischer? No, really? He is the voice of Roger Rabbit! Check out this great presentation, or should I say performance, he made at TED talk in 2005 and that was republished recently, you will not be deceived. He is talking about serious topics such as astronomy and mathematics in a really… particular way. The best in that is that the Mathematic part of it makes sense!
A lot to learn to make a presentation more… fun :-)