Whether you’re living a life on the go or staying hydrated around the house, you need a spill-proof tumbler that won’t soak ...

She extensively tested these spill-proof solutions on multiple Stanley cups and is happy to report that flipping her tumblers upside down over her desk multiple times resulted in no spillage.

11-Year-Old Makes An Unbreakable, Spill-Proof Cup For Her Ailing Grandfather When Lily Born noticed her grandfather, who suffers from Parkinson's, was spilling his drinks, she decided to design ...