I just discovered this post so I thought I'd post my model for Hue motion sensor corner mounts.
Hue Motion Sensor Corner Mount
Just ran across this... For users of the flume water monitor system, this is the battery pack hack for the Flume 2. Looks very interesting. I haven't used it yet.
Print your own battery pack
Oooo...like that one, nice low profile, sleek look!
No tabs to break off! Much better.
Printing one now in PETG to see how it fits my C8 non-Pro.
That is fantastic!
That I sorta promised it's the last one... 
FYI: I printed and installed a vertical desktop stand for my C7 hub and the peak hub internal temperature has dropped 2 degree F.
Awesome, mind sharing which print, to try?
Desk and Wall Mounts for Hubitat by fillibar on Thingiverse: Desk and Wall Mounts for Hubitat by fillibar - Thingiverse
Still very nice! Like how sleek it is.
And, a little piece to reflect the status LED when it's not very visible.
Thingiverse
Printables
MakerWorld
That is a cool touch...
Sometimes it's the little ones that are the biggest pita. 
I've just uploaded a bracket for the Sinope WL4210S (with remote sensor) to Makerworld. Photos could be better, but I'll work on that in future uploads. Many other items will likely follow, but this is the first one I've actually shared. Not that I don't want to share, it's really been a case of available time.
https://makerworld.com/en/models/2591734-sinope-wl4210s-water-sensor-bracket#profileId-2859666