Blabberize

Blabberize.com
This site allows you to speak through a still picture by recording your voice (up to 30 seconds) and moving the mouth of the face on a picture that you have chosen. I've used it with students from grades 2-5 after they have completed their research on various historical figures.

You don't need to register to use Blabberize, but if you want to save and share the students' work then you will need to.

The steps to make and create your own "blabber" are very simple and can be taught in minutes.