The world's first business card sized drone, made from one single 3D printed card and parts from a Blade Inductrix Micro Quad (Tiny Whoop). See instructions under 'Thing Files'.
Frame weight: 2.1g
Full weight including all components, battery (3.7V 1S), FPV camera (Spectrum Ultra Micro) and mount, and card: 22.6g
Camera mount pictured by bmsweb: http://www.thingiverse.com/thing:1637590
Video instructions: https://www.youtube.com/watch?v=vuQl7xgHrX8