iPhone 6 - Side holder
I screw this on to my small fold away Tripod and it holds my iPhone 6 on its side for taking time lapse photo's. Tap out the hole on the bottom and thread it on to the tripod mount screw.
The small grove along one side holds a small strip of rubber that provides a friction grip on the phone. This is made to hold an iPhone 6 with the leather slim cover on it, but if you use a larger rubber strip, it will hold a naked iPhone.