Trust the Japanese to be inventive about anything: anything important as well as anything trivial. Well, to my mind, here's something trivial ... a banana keeper. It keeps your precious banana from getting bruised, especially if it's a big, long one, that's for sure!
So I saw these banana keepers hanging around at the Daiso outlet at the Queensbay Mall, Penang. In case anyone's still doubtful about the, erm, usefulness of this container, here's another picture of it: