Almost everyone that flyes FPV drones have a spare camera and a transmiter. Maybe these that we are not proud to use in our drone anymore after few upgrades.
But it doesn't mean it is the end for these parts.
I made this cam holder with many options to assemble it with screw and/or zip ties.
It is compact and yet has plenty of room fot cable and the transmiter to stay cool.
Some possible ways to use it is to hold it in a helmet while your friends enjoy in FPV what you are doing like skate, paragliding... it is up to your imagination!