I'm looking for some sort of cartoonish science character in different poses that I can use to explain some video I'm producing. Probably a still that I can inject into various places of the Vegas video with a (word) balloon that I can place some snappy text. Of course, I'd like such an item free, so maybe there's a source for such things. Perhaps a guy in a lab coat, Einstein, professor, Sagan, ... I'd prefer a drawing of some type as opposed to a photographed person.