Here's a useful invention!
These 2 guys invented a Mug....not just an ordinary mug...but a Mug and A Kettle! A Mugh which functions as a Kettle! or a Kettle which functions as a Mug!
You know, this is what i say a very useful invention! Imagine getting your coffee warm anytime you want it. Or...maybe having your instant noodle *there's one which say cup noodle which is smaller in size compared to other. HEY! you can actually cook it inside! :D