Amazon has the well-reviewed Exquisite Gaming Cable Guy Halo Master Chief Phone & Controller Holder (CGCRHA300149) for $22 - $3 off coupon (check "Apply coupon") = $19 with free shipping on $25+ or with Prime. Macys has it for the same price w/ coupon code FRIEND [Exp 12/16].

Holds your phone, and game controller and comes with a six-foot long charging cable.