I made a camera mount for a car last week with PVC pipe and glass holding suction cups from Harbor Freight. I found the idea of using the cheap suction cups on YouTube after looking at higher dollar options meant to be used for filming from cars. It seemed a bit crazy but so far so good.
It needs to be a little beefier because it was wobbling up and down on bumps which was showing up as sine waves on frames. I’m going to 3D print some braces to go between the pipes. The test video is below. The eventual montage video will have music, cuts, and lots of locations at varying times of day. I suggest fullscreen mode for the video.