This holder was made to have the controllers always together.
For transport, I put the Meta Quest in a box. The controllers then rest under the head strap. To keep them from falling out of place, they're in the holder.
It is an updated version of my previous (bad scaled) model:
https://www.printables.com/model/1351173-meta-quest-3-controller-holder
I updated it because it was a bit fiddly to put the controllers into the holder when they were in their cover as the opening of the "grip clip" was at the upper side. One has to rotate it into the holder because of the finger straps. Now it's possible to clip it straight into the holder.
Here now we have two versions:
This is the most flat orientation. The buttons don't touch the surface, even though it's close.
The prints that you see on the photos were printed in flat orientation. The model surface will be nicer when printed in an upright orientation.
The author marked this model as their own original creation.