I wanted something light and simple for my Quest 2 while playing games like Breachers, Ghosts of Tabor, and Population: ONE.
Printed out of PETG but I'm sure PLA will work just as well (3 walls, 4 top/bottom). No supports required.
I used the follow components.
1 x 15mm carbon fiber tubes off Amazon (20 cm length):
https://www.amazon.com/gp/product/B099RJP2WV/
2 x M4 thumb screws, though a normal M4 bolt (16mm will work):
https://www.amazon.com/gp/product/B0BZ81JJ4K/
2 x M4 nut.
The author remixed this model.