Kids love image and video generation! The former is cheap enough to do just because it is fun.

I have a young boy, and whenever he builds an impressive "scene" from LEGO (like a diorama or whatever), I take a couple of reference pictures with my phone and make it into a "real" movie scene, cartoon, or whatever. He loves it, and this motivates him to build more and bigger things out of LEGO.

If he builds something really special, I might actually fork over the $5 to use Omni to turn his LEGO creation into a 10-second video instead of a still image. It'll blow his mind!

PS: There also are cheap and even free phone apps that make stop-motion animation trivial. We've already made a couple of videos of his toys moving around that way.