When they’re not busy making their cult-favorite crayons or paints for art time, they’re making their game-changing Color Bath Drops for bath time. (Psst! The Easter Bunny might want to grab some of ...

And what did you learn? Martin: The crayons are made out of wax, and another thing to make it soft enough to draw on paper. Harry: The next thing to make it really hot and it becomes a runny ...