Wonder if this is worth it at $60.
http://www.fastcodesign.com/1672790/a-stylish-iphone-case-that-blocks-harmful-radiation#1

http://www.fastcodesign.com/1672790/a-stylish-iphone-case-that-blocks-harmful-radiation#1
In 2007, Pong began early-stage development for products that could effectively redirect cell-phone radiation away from a users head and body, and released its first product in 2009. A Pong case works because of its antenna, says Todd DeYoung, Pongs president and CEO. When a Pong case is snapped onto a phone, the paper-thin antenna embedded in the case establishes an electric field with the antenna inside the phone, DeYoung tells Co.Design. This steers the energy away from the front of the device (the user-facing side) and toward the Pong case instead.