‘Piping hot’ is how most of us like our coffee, hot cocoa, and severely spiked cider, but our tongues always beg to differ. Instead of precariously dipping your little pink flavor-taster into a steaming cup of liquid, let the Smart Mug (25 euros) help you out. Powered simply by the heat of the beverage, Smart Mug determines the temperature of whatever’s inside and lets you know when it’s safe to drink via a row of green and red light indicators. Something like this just might make drinking tea fun.