Nina Paley's charming animation illustrating the simple difference between copying and theft, which supporters of intellectual property rights seem to miss when they condemn the copying of ideas as "theft".
Nina Paley did the animation and sings the song. She released the video with no music and encouraged others to write music to go with the video. There are almost a dozen different versions on youtube, to suit every taste.
The very production process for the video below (my favorite version) demonstrates nicely how much better our lives would be without intellectual monopolies... Nina Paley waived her State-granted privilege to prevent anyone "stealing her idea" by creating a "derivative work", and the result is a better product for the consumer.
Copying is Not Theft