Designer Silvio Teixeira developed a poster that can be cut into 100 business cards which can also be brought together as a flip book. That sounds reasonably cool already, but the video makes it about a thousand times cooler. From Teixeira:
100 Ids is a project that defines my identity as a designer and it is also a self promotion campaign. The poster (50×70 cm) is cut to become 100 business cards and 1 video. The logo is a pseudo coat of arms that is reinvented in many ways to present my individuality.