TOTO! Those toilets in Japan are crazy! They have at least a half dozen functions on even the most mundane models. Besides being heated, deodorizing and helping to clean your bum*, they also played music. My favourite function was the one that makes flushing sounds to cover up any disconcerting rumbling of the bowels. The hardest function to part with was the warming one though. My tush never felt so spoiled!
* Not only was there a built in bidet-there were multiple angles to choose from! To the undiscerning bidet user might not think there’s a difference, but you were quick to discover that while some angles were pleasantly refreshing others could really make you feel a little violated. Seriously.