I thought I would start this out, and I dont know if this is the right place for it but lets find out.
Below are pics of the "Tumbleweed" system, which is the first rotary garden to me knowledge to be brought to market. From this system all of the others were inspired either directly or indirectly, and many other round system as well, imo.
The Tumbleweed had water-cooled lights and photo-switch activated watering heads.
You can also see that it was mostly made from PVC pipe.
There has been some talk of building some home made units so I thought these might inspire.
I have not seen a home built version and I am hoping that this flushes out some pics n plans.