The Yamanote Train Bank from Japantrendshop "has a rear door that opens and closes to remove the coins, and headlights that flash during operation." Product page. Video after the break. Click here for first picture in gallery.
Actually when you insert a coin in the Yamanote Piggy Bank, the gadget starts to play the nice train station's music.[via Akihabara - Japantrendshop]
