All-time save leader Mariano Rivera has made close to $150 million playing baseball. But as a kid growing up in Panama, the Yankee legend had so little money that buying a baseball glove was out of the question.

In the video below, Rivera demonstrates how he used to make his childhood mitts out of cardboard. He says they did make it easier to catch a fast moving baseball, but adds that anyone who can afford a leather glove should definitely go that route.