People get hit in the eye by flying champagne corks all the time.
This usually does not cause permanent injury, but sometimes it does.
Today’s invention is a way to render such corks less dangerous.
A large, soft, plastic disk with a pin on one side (red) is pressed into the cork, before removal.
As the cork flies out of the bottle, it is impeded by the drag force on the disk.
Even if contact is made with a bystander, the size of the disc will reduce the impact pressure to less than that required to damage even an eye.