Colored soap bubbles! Of course! Everyone loves blowing bubbles. It seemed such a simple and perfect idea, the kind that would leave other inventors slapping their foreheads and saying Why didn’t I think of that? Kehoe says, “I remember walking down to the store thinking, ‘This is so easy. I’m going to be rich!’ “

The long years of desk jobs and desperate late-night experiments were finally over. He had done what the toy companies had told him to, and now it didn’t matter what they thought. He had his own well-financed company and a washable bubble. It was time to tell the world.