Shinkansen too hard ice cream
Shinkansen too hard ice cream

Shinkansen too hard ice cream - Wikipedia

Some people have tried pouring hot coffee over it to make a sort of ad hoc affogato, but according to reports, this did not work as the coffee froze on top instead of melting the ice cream.
That is cool, ice cream frozen hard enough it'll be just right to eat when you get home (as opposed to having to get home, and wait for the ice cream to re-freeze)
Shinkansen is a train.