What is the definitive guide to holiday events for kids by Mommy Poppins?

I'm sorry, but the available content doesn't directly address a definitive guide to holiday events for kids by Mommy Poppins. However, Mommy Poppins does provide a variety of guides for kids' activities, including a summer vacation guide with indoor and outdoor fun ideas, summer camps, travel, waterparks, and staycation ideas.

Would you like to know more about the summer guide or are you interested in a specific holiday or type of event?