OXO Good Grips Winged Corkscrew, Black
The nonstick-coated worm on this corkscrew almost melts into the cork, gliding easily and without force. The wide, comfortable plastic knob turns to drive the wings up, and once they're fully  deployed, simply push back down as the cork slides up and out of the bottle neck. It works with any corked bottle--try it for vinegar, olive oil, or aromatherapy oils.--Laurie Notaro