Japanese shop Columbus Circle must have realized that the New Nintendo 3DS’ cover plates don’t just have to be decorative. Its Retro Plate & Watch is an awesome clock front plate for the New 3DS. Not only is it functional, it looks like the 3DS’ ancestor too.
The Retro Plate & Watch tells the time and temperature and also has timer and alarm functions, all presented through a Game & Watch style interface.
You can pre-order the Retro Plate & Watch from Amazon Japan for ~$24 (USD). I wonder if you can mod two Game Boy Micros onto a New 3DS.