There's a nice calendar for your kids, and even for you! Advent Calendar Red is different from other calendars you are used to, because it comes in form of small drawers in which you can put reminders or small presents for your loved ones (which makes it a great gift for holidays).
Each drawer is made from hard cardboard and has 47 x 47 x 52 mm in dimensions. Install it on your wall, or just put it on a table and get ready for fun! Designed by Philippi. Available at pid.com for $38 USD.