Have a look at the video below. This seems like a great project. I'll be making a contribution.
I've written about obstacles facing girls who want to play competitive baseball several times. For years, baseball was a boys-only preserve. Girls were banned from most high school teams. They played softball if they played a ball-and-bat sport at all. Rules (and attitudes) seem to be changing - slowly.
Finally, a hat tip to a tireless advocate for gender equality in baseball. I'm full of admiration for Justine Siegal's commitment to and passion for this cause. Check out Justine's Web site, Baseball for All.