Mom gets the chocolate one, kids get the toy one.

Keep it for yourself!

I'd just give it away. They're pretty little and they already have a different advent calendar.

Get 2 chocolate calendars and tell them it is a countdown to Christmas.

Please advise if I should give an extra chocolate advent calendar for 2 kids (under 5 to split a tiny piece each day) to share, or give it away? They will have their own toy advent calendar, and I hope there won't be any fighting.

I am giving them tonight, what should I tell them the story behind advent calendar? We are not religious.