The first is called DoppleMe. Sort of a silly little tool here: basically it lets you create an cartoon avatar that you can use for all kinds of websites. You have to create an account if you want to have full access, but even the free tool will let you create an avatar that might almost look like you. (Or anyone else, for that matter.) Here's one I made of myself...almost looks like me!
Kinda cute, right?
Now for the really spiffy one...Blabberize. Here's the idea: upload a picture, and the site will create a video from it by capturing audio and automatically making the mouth move along with the sound. Here's a blabber I made (using my cute little avatar, of course) to illustrate:
You can create several clips and string them together, so you could have multiple characters (from different photos?) go back and forth with a conversation. You can also make multiple mouths that will work in tandem--a whole choir, if you want. You can either upload audio, or record it right from the microphone on your computer.
Would you use these with your kids? If so, how?