I like Daelmanu's iPhone 6 dock, it has a good looking and useful design. But unfortunately it doesn't fit my new iPhone 6S plus with air jacket case. So I create another one with some more features I want, which includes 1. higher back rest make me feel safer and easier to pick up the phone by one hand. 2. add a speaker horn. 3. allow to route cable to multiple directions, I personally prefer left.
==update at 2016/5/2==
I post a narrower version for standard iphone6/6S. I don't have that for testing, please let me know if it doesn't fit.
==update at 2016/6/2==
Iphone 6 standard expand 3mm wider
==update at 2017/5/5==
expand channel for cord wider, it was 3.0mm now 3.5, I also make it deeper, it was 3 now 4.
The one in the picture is made with above settings and PLA.