I know Vacation Bible School organizers aren’t looking to me for advice, but I’ll give it to them anyway:
Don’t make Nazi references in your promotional videos.
I don’t care if you’re against the Nazis. Just don’t bring it up. No swastikas. No Hitler. No imagery of military attacks. Just don’t do it. (And don’t bother with references to a TV show that’s more than 40 years old, either.)
It’s for the church’s Vacation Bible School, which I guess takes place somewhere in mid-twentieth century war-ravaged Europe: