I use this stand:
Stand with GoPro mount and QuadLock adapter for phones von Alex P. | Kostenloses STL-Modell herunterladen | Printables.com
I use this magnets:
Nillkin Pack of 2 Magsafe Wall Mount Ring, SnapHold Magsafe Magnetic Ring, Magsafe Magnetic Sticker Compatible with Magnetic Case/iPhone 13/13 Pro/13 Pro Max/12 Pro Max/12 Pro/12 Phone - Black : Amazon.de: Electronics & Photo
The author marked this model as their own original creation.