I installed Nocturne on the Spotify CarThing, since Spotify is bricking the CarThing in December. This currently requires a Raspberry Pi (Zero W or Zero 2 W) for use in the car so I needed to be able to mount the Pi. I am using the magnet connected to the CD slot mount in my vehicle, but I think this should work with any of the magnet based mounting options. 

I used this model for the cover, but it isn't necessary if you don't want it. 

The tolerances are a little snug on the magnet, but it was a perfect fit printed with my A1 Mini.

Printed with Printed Solid Jessie PETG in Black Soul Glitter