I created a simple phone holder for my cheap camera tripod. Nice for video calls when you don't want to hold your phone the whole time. You'll need a single 1/4-20 nut to embed in the bottom of the print. That's the screw size most camera mounts use (at least in the US)

Print instructions

Print on it's side, any resolution, at least 2 perimeters, with 10% infill