A little late to the party but…
If you want to inject some humor into the show, I understand when Steve Martin during the heyday of his stand up routine when he was doing packed stadiums, that one of his “magic” tricks was to change the date on a dime.
Though I never saw it I can imagine it went something like:
Takes dime out of pocket, patter with “I will now astound and amaze you by changing the date on this dime.”
Flash dime to audience: “You can clearly see that the year on this coin is 1998.” Rub dime for a second, flash to audience “and now the year has been changed to 1997!”
“Thank you, thank you” quickly puts dime back in pocket.
Probably over the heads of an 8-year old audience but worth a mention at least.