Not the prettiest design, but pracitcal. It's also a “work in progress”, but its functional for me right now so not rushing to do any updates to the design, just request one if you want. 

Requires 2 M8*40 screws + nuts, as well as fixing hardware for your rig (2 M8*~20, and 2 T-nuts)

Allows you to mount a button box or any other lightweight*** vesa mount accessory to your rig. There are a few options out there for vesa mounting but I wanted one that I could really tighten down and reduce any potential flex/movement/wobble, but also be adjustable. 

Please feel free to remix, share, remodel, tell me its terrible, etc - Just wanted to share for anyone caught in a similar situation to me

I printed on the Bambu X1C on the default 0.20mm Strength option

***I do not recommend trying to use this for anything heavy, like a monitor***