The cute, heart shaped Green House USB Love Cup Warmer can help you keep you hot drinks warm! Just simply plug that little gadget into your USB port and enjoy your drink!

The Green House USB Love Cup Warmer measures 116×123× 30mm weigh approximately 110g and come with 1m USB cable. The Love Cup warmer is available in Japan only for approximately 1280 yen ($13).

[Source] dhiram