I got my son a Fiio E6 to use with his HTC phone and Shure cans. To our ears, this is a great improvement, as the E6 can really drive those Shures.
But, my son is wondering how other Fiio owners manage the dangling nature of a very small/light portable amp. The E6 comes with removable clips which are fine, but there's really nothing to clip it to. The best case would be some way to attach it to the phone. My son doesn't expect to use the amp full-time when he is out/about, but even around the house where he really wants to use it, it would be great to attach it somehow to the phone.
Outside of a simple rubber band (which would get in the way of using the smartphone screen), do you guys have any creative ideas?