There are so many cute things here in Japan. I have been on and seen a number of trains and busses with cute artwork on the outside (and sometimes the inside too),  have seen cute warning signs (like ones telling you to pick up after your dog), and fun mascots for cities or campaigns (like the one from this plastic bag telling you to recycle). I also have heard super cute music alerting you that it is safe to cross the road, that the train is coming to a station soon, and on the hotel floor to serve as background music. I like hearing nicer sounds than just beeping!