This thread got into a few things but one of the outcomes was my wall mount (posted on Thingiverse for people to print). That can easily hold one on a ceiling (I can shake mine around without it slipping free).
The Ubiquiti AP is a great idea also. I just gutted two EOL ones (a square and circle) and was planning on putting a sensor up in there (was hoping to figure out a way for the LED ring to be useful also). Putting a Hubitat in could work well.
