http://www.amazon.com/Casabella-Silicone-Pie-Crust-Shield/dp/B0032AM7OC/ref=sr_1_11?ie=UTF8&qid=1450275011&sr=8-11&keywords=the+perfect+pie+crust+shield
I use one like this ^^ that comes in 4 or 5 pieces, so I can fit various sizes of pie. I usually put it on about halfway through baking to let the crust set up and brown a little. Remove for last few minutes. The silicone works just as well as the old-school metal.