In my Series "Very Basic" I just added (on request) this vertical mount. Originally Designed for the iPhone X(s) it seems also to fit other iPhones.
There is a firm grip enough for basic tripod use.
Because there's almost no base adding support is tricky. So I included an STL with support for your connivance .
Have Fun and please leave a Like if you like it
Just recently (One year ago) I discovered 3D printing and in addition 3D printing. I love tinkering my designs together in Fusion 360. Mostly inspired by things witch have some use. I'm always open for new ideas. If it's within my skills to make it, I'm happy to have a go with it.
Have fun making!