Show some young children the Apollo 11 movie. (Literally "Apollo 11.")

I was just going to show them the launch, but they all demanded to stay up late, told me to stop fast forwarding, and then had to sit and watch it again with each set of grandparents.

Another thing you can do is make sure critical parts of the Artemis streams (takeoff, approach to the moon, and landing) are on when you have children around. I texted the links to everyone I know.