What's it made of? Is it threaded? Has she found maybe a little ball that fits inside of it? Just letting my mind wander.
It looks like the top of an old snorkel that my dad used to have. A little ball would go in it. That would mount on the end of the snorkel that is opposite to the end you put your mouth on. The end that mounts on would not just go straight up, it curved downward. So when it was above water, the ball fell to the end of the cage and air could go in and out of the snorkel. When that end went under water, the ball would float and plug the opening of the snorkel so no water could get in.
Did he ever snorkel or scuba dive when he was younger?
It looks like the top of an old snorkel that my dad used to have. A little ball would go in it. That would mount on the end of the snorkel that is opposite to the end you put your mouth on. The end that mounts on would not just go straight up, it curved downward. So when it was above water, the ball fell to the end of the cage and air could go in and out of the snorkel. When that end went under water, the ball would float and plug the opening of the snorkel so no water could get in.
Did he ever snorkel or scuba dive when he was younger?
He was Motorcycler, skier, and sailboater.
A checkball holder from a wet / dry vacuum ?
It looks like some kind of audio vibratory physio molecular device!