iOttie Easy One Touch 4 arm

Note that only one of the arms is included - they are similar but not identical. Mirroring and some adjustment would give you the other arm, feel free to go at it. FreeCAD model included.

Unfortunately needs some minor supports - I couldn't figure out a way to avoid this. But it's not in any visible place and the support should be fairly easy to remove.

I printed it using PETG at 0.15mm layer height with a 0.6mm nozzle. An even more temperature resistant material such as ABS would surely be better - will see if it holds up in real-world use in a hot car over time. Not tested in real-life conditions yet!