4. With a pen and an apron
A lot of sources will recommend simply pushing the cork down into the bottle—either with your thumb, the end of a wooden spoon, or even a pen with a string attached. The technique works, but this method gets extra bonus points for coming up with a way to fish the cork out.
5. With a chef's knife
Proceed with caution when it comes to this last demo. A little dubious and definitely dangerous, it's the only one that actually breaks the bottle. Still, it gets the job done.