I've had an unused VESA TV wall-mount arm behind my desk for quite a while and it's mostly served to accumulate random cables. I figured it was as good a place as any to hang my VR headset.
You could also potentially screw this plate to the back of a TV, I guess.

I've only printed the normal file, but "(beefy)" is a more solid-body design and if you're worried about layer adhesion and you've got an M3 tap, you can drop a 20mm M3 screw into that hole after tapping it.

Uh also there's an emoji embossed underneath the plate to limit bed adhesion

Huge thanks to CyberCyclist for including their .f3d file on the original Thing

This piece is designed entirely for M3 screws because that's what my VESA bracket required. I could revise those corner holes for M5 upon request, but good luck getting me to notice a thingiverse comment on the new site layout...