So a lack of athletic talent has led you to compensate by desiring "stripes" in your lawn. No big deal! Just pick up this relatively inexpensive striping kit from Toro and go to town on that grass.
You won't be playing at Fenway anytime soon, of course, but who cares? You'll have geometric shapes in your modest half-acre that you and your son or daughter can have a catch on as you try and live the baseball life through them that you never had.
Good clean fun for $US90 and 9kg of dry sand! [Uncrate]