Dressing as Tweedledee and Tweedledum themselves, Neil Patrick Harris and David Burtka dressed their twin children as Alice and the March Hare.
From the Beardlsey family:
A lot of people have asked how we got our kids to do it. I don't really know why they do it, they just do. Like I said, the show is part of our family, and has taught us that family is the most important thing (unless of course you mean of the things we eat, in which case it's breakfast).
The awesome company behind this is Squeegee Cleaning Services of Chelsea, AL. Employees from the Alabama company dressed up as Superman, Batman, Spiderman, Captain America, and dropped by to "hang out" with the kids during the work day. Superman can fly, but hey, we all need a day to relax every now and then, right?
Check out more costumes and all other Halloween-related awesomeness here!