Customizable phone mount MINI Countryman - custom magnet

This is a customizable car mount for my MINI Countryman. In this version which you can build your own magnet mount selecting a magnet shape and dimensions that fits your needs.

If you want the original version of the mount, which included a ball join, follow this link:
http://www.thingiverse.com/thing:2117513

If you want to have a universal version of this mount follow this link:
http://www.thingiverse.com/thing:2117536

If you want to have a plain version of this mount follow this lin