Thanko - USB cup holder keeps your drink either hot or cold
In a cold room in the winter, fresh coffee gets cold quickly in your mug while you're working, and I HATE it!
Thanko just released a product to solve the problem. It is a USB cup holder that keeps your drink in a paper cup or can either hot or cold and it's sold for 3,980 yen.
Simply connect the cable to your laptop's USB port and flick a switch to select hot or cold. According to Thanko's testing, in a 25.2 C degree room, 6.1 degree water became 37.4 degrees 1.5 hours after they turned on the switch to make it hot.
Peltier thermo-elements are used inside of the cup holder.