I made this stand to support the double light post for my christmas village. I designed it specifically for these lights (https://www.amazon.com/dp/B001EPLADG/). I hope you find them useful.
Edit 12/8/21 4pm:
I remembered printing some of these last year and needed more for this year. I wasn't able to find it so I had to design it from scratch. I also remember that they were not a good fit as my lamp base is only 2mm.
So, I just found the other design and adding it as a source for the idea. I also added the first remix in context due to similarities and the intended change was the same as mine. Not that the design was difficult, a couple of rectangles crossed, with a revolved boss, and a cutout to allow for a little flexibility...
The author hasn't provided the model origin yet.