Smartphone handle for skateboard filming

This is a handle, that is designed to hold your smartphone while filming skateboarding.
The hotshot handle, which is the commercial version of this, is quite expensive for what it is. Therefore I tried to model a handle, that performs similarly, but can be printed at home.

I DO NOT own a 3D printer, so unfortunately I could not test the design. If anyone is willing to try this, please go ahead and write an 'I Made One' entry on the project page.

I am aware, that this design is not perfect