I purchased a Dremel chainsaw sharpening attachment:
https://www.amazon.com/gp/product/B003BIFMK6/
but it did not fit my Ryobi P460 rotary tool:
https://www.amazon.com/Ryobi-Variable-Speed-Rotary-Packaged/dp/B07NVQMP78/
so I designed this adapter (which was quite easy using the thread library).
I would recommend something like PETG, ABS, ASA, etc. PLA might be a bit too weak to stand up to much abuse.
The author remixed this model.