Here's one that's listed on Temu and also on Amazon for the Mavic 3 Pro. I haven't tried it yet as I still use my Phantom 3 Standard for light painting.
Also, a vendor on this forum @IronSky1 makes mounts for the Mavic 3 Pro that can hold up...
You are not the first person to ask this question. I understand that for some people's workflow, off-line (stand-alone) versions might be preferred. So, I have thought about it but my preference is to provide these tools on-line. The on-line...
I second @RAC DJI mention of @DJ Wes Mission Utilities. Without all of his hard work and dedication, complex light paintings like these would be out of reach to most people and would be limited to basic spirals and orbits.
Chris