A simple hanging saucer consisting of a base and loop handle, the Spill Not is not only incredibly effective, but fun to use.
More Info : Thespillnot
It’s not magic – it’s physics! The SpillNot is an incredible invention that allows just about anyone to easily carry hot or cold drinks around the house, to the sofa, up and down stair without those messy, annoying, spills.
With the Spill Not, the liquid in the cups does not spill or slosh in the cup, and the cup doesn’t slide when carried or swung around.
This is because the loop handle is very flexible and cannot deliver a lateral acceleration to the cup, which is usually what makes beverages spill from an open container not tipped.