The Rode go 2 receiver clip has two ridges on it. I designed this so that the 2nd ridge will fit into the slot and hold it in place snugly.
It works great on my Insat360 OneX2 and it is invisible. it doesn't show up in the shot at all.

It can pretty easily be printed with nearly anything, on most printers.
I printed it with Black ABS because that's what I had loaded at the time.
I used supports to build plate just at the rounded corners.