Wireless cellphone car charger GoPro mount

Wireless cellphone charger bought on AliExpress had a suction cup which broke. It used a balljoint for the suction cup and I've made an adapter for the GoPro mount. Printed with ABS with support.
Video about this thing (Russian): https://www.youtube.com/watch?v=JQHrktLzJuE

Tips are greatly appreciated. I need a lot of plastic for prototyping! :)