Hot-T Wand, designed by Minimal Inc., is a concept for heating your cold beverage. According to the designer, this Hot-T Wand is pretty a clever water heater because it will release its hotness when the built-in Water sensor detected liquid subject being submerged into the wand.
The Hot-T will also get an extra long life thanks to the Ultracapacitor energy storage technology, and you wouldn’t hurt yourself because the sensor is clever enough to differ your hand’s sweat and water.
Again, it’s a concept design. So I don’t have the idea where to grab one. 😉