Sometimes a simple card with a heartfelt message can have more impact than an expensive gift. But London's Birdbox Studio's holiday card isn't simple. It's actually one of the most impressive and complex pop-up cards you've ever seen.

It doesn't just pop-up, though. This card plays music, it's got a full-on animated flipbook cartoon running in the 3D home's front window, and you'll want to stick around for the ending that really spreads the holiday cheer with an explosive finale. The ball's in your court, Hallmark. Especially if you can make it less than an inch and a half thick. [YouTube via Tastefully Offensive]