Putting your hand up to your ear with thumb and pinky extended is a universal sign for talking on the phone, but what if we told you that you could actually talk on the phone by talking into your hand? Inventor Bryan Cera has come up with Glove One, a 3D-printed gauntlet that doubles as a working cellphone. The prototype features touch keys on the underside of each finger, plus a speaker and mic on the thumb and pinky. Glove One, explains Cera, is a “cellphone which, in order to use, one must sacrifice their hand.” Head over to Ecouterre to view a video of this amazing new gizmo.