I was holding back on this advice since it would give me a leg up on the rest of you fantastic designers...

At the Expo, Charles Belcher shared with us the name of the software he used to do animation of his house in the projection mapping talk.
CrazyTalk7 is an affordable software tool...
http://www.reallusion.com/crazytalk/default.aspxYou can take a picture of a person -- or an drawing, lifelike, or a simple outline of a snowman... and specify the location of the face, the mouth, and eyes... and the tool will "animate" the picture. It is creepy in how life-like it can be.
The software can listen to your voice, and move the mouth accordingly. you can animate the facial features, and add emphasis with the face and body motions. there is a LOT that it can do.
Originally, I was looking for a way to create monster faces for halloween that I would place on a panel... for christmas I would do the same with santa, frosty, and other characters. I never spent the time to get the papagayo stuff to work, and to delve into the creation of video content.
This software makes it so easy. watch the tutorials on youtube to see.
to have your character lipsync to music, you need to record your own voice singing to the song as you listen on headphones to the original song. The software matches your voice to the the facial movements. when you complete the animation, swap our your voice track with the original music.
try it out.
in return for this suggestion, I hope everyone shares their cool sequences so that I can use them in my own show!
http://www.reallusion.com/crazytalk/default.aspxhttps://youtu.be/VXRjX5bNGKA?t=305https://youtu.be/eHVs5zr6MvE?t=626