Forever also sports a custom design for a new widget we call Milestone. You can find it in your blog dashboard at Appearance → Widgets and it’s pretty easy to use. Just pick a title for your event, a date and time, and a special message for the big day, and you’re ready to go. Now you have a special save the date widget for your Wedding on every page of your blog. via Get Married With WordPress — Blog — WordPress.com.
But wait there’s more in the comment section. The new Milestome widgets is available for every theme on WordPress.com