This is an adapter I created that allows you to hold most generic TPU (thermo-plastic polyurethane) iPhone 6 cases. These generic cases are almost always the same shape and readily available at most mall kiosks. I used this, along with hook-and-loop fastener to affix it to a Brodit (http://brodit.com - in the EU) or ProClip (http://proclipusa.com in US) mount. It works great and has never fallen out.

Thanks for creating the original OpenSCAD model !

Customized version of http://www.thingiverse.com/thing:283748

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=283748

Using the following options:

clip_walls = 2
pencil_shape = 0
clip_inset = 0.75
clip_height = 30
pencil_rotation = 30
phone_face_radius = 4
pencil_diameter = 0
phone_width = 69.6
phone_back_radius = 3
phone_thickness = 9