I used this 10" ringlight from Amazon:
https://www.amazon.de/dp/B07Q3471S2?psc=1&ref=ppx_yo2ov_dt_b_product_details
With the riglight you will also get an adapter. Disassemble the adapter and use the screw and the nut for this mount.
You need 4 heatinserts and 4 m3 screws.
There are two versions. The xx_bigger is for additional use of foam.
The author marked this model as their own original creation.