This Thing Makes It Impossible To Spill Your Coffee 

The spillnot is a coffee mug holder that prevents you from spilling any liquid while in transport. It uses science trickery known as centrifugal force to always keep your mug and the liquid inside centered no matter how shaky your hands are.
Perfect for on a boat, plane, serving at a restaurant, or just while serving coffee during an earthquake. You can rest assured your beverage will get to its destination without spilling a drop!
Available here:
odditymall.com/...