Popped one of these off Bamazon and it fits really well. Custom sized. Works really well.
https://www.amazon.com/gp/product/B00X7U56RM/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1
Only real issue is what to do with it once you are not using it. The windshield on our cars is HUGE! So this shield...