Don't believe the hype when it comes to these air powered unique corkscrews.
The compressed air hypodermic cork remover looks like a giant needle to be inserted through the cork. The "syringe" part is like a bicycle pump, and pumps air into the bottle until the internal pressure pushes the cork out.
It works fine, but can break off in the cork, can explode, and a stuck cork can blow out, suddenly pushing the device into your face. $15-20.