In Manitoba, we have "wedding socials" where an engaged couple rent a hall and sell tickets and sell alcohol and hire a music man and have a silent auction for crap they begged from local businesses, and then they lay out free cheese and Winnipeg rye bread and kielbasa and other cold cuts for drunk people to eat. They make a lot of money
Then I was watching a podcast from the They Might Be Giants guy (where he explains Birdhouse in Your Soul is from the point of view of a nightlight) and at the 38 minute mark he talks about their song "If Day for Winnipeg", which made me wonder if maybe not every city has a traditional ritual day of pretending the Nazis won.
https://m.youtube.com/watch?v=tId0llof1uw