Maybe you all already know about these, because you are all cool and I am Old. But I have just discovered them. Premise is such: children are given some sort of scenario, and recorded as they come up with it. Then, it is acted out by adults, and the kids voices dubbed in. I'm finding them utterly charming!
In this one, kids have been asked to be a salesman and a customer:
And pretending they were at a fast food restaurant: