Problem with reproductions is that the stuff you use as the mold shrinks a lot and then the stuff you put in the mold shrinks too, leading to fitment issues. Back when I thought I had found an OEM one I was kicking around this idea and started looking into 'soft' solutions just like the OEM one. But with a more durable skin on the Nurf football. I am holding my breath for Kurumaz's urethane version.