Problem: I had an iPhone4 Ram Mount on my motorcycle. I moved up to a iPhone5 which no longer fit the old Ram mount. I also added a Mophie battery case to the iPhone.
Solution: I removed the iPhone4 clip from the Ram ball mount and created this cradle which snuggly holds the Mophie in place. I'm printing this now, so there might be some adjustments needed. I'll revise it as I proceed.

I used the new CAD website Onshape. It's in it's Beta phase. Check it out!