What better place to save your yen than this adorable bank in the shape of Japan's iconic Yamanote subway train? Each deposit triggers the bank to play a melody from a randomly chosen Yamanote station.
The Yamanote line carries an estimated daily ridership of 3~5 million passengers. That's comparable to the number of people that use the entire New York subway system. If you put a penny in for every person who got on the line each day, you'd have a crapload of pennies... and probably a completely empty bank account. The price for "train"ing you to save is $90. [Gizmine]