This is a pretty cool idea, something you can do if you have access to a 3D printer. Ideally, I’d add in a jack so you could plug the HomePod into the stand.

Take a look. There’s a bit of handwaving to get from that stud sensor to a spec for the 3D printer. That part seems like magic/impossible, so I’m guessing that the part was hand-designed, the stud sensor was purely for show. Please prove me wrong.

That aside, I kind of like the result. Not too difficult a project.

Side note, I’d love to see an app for the iPad Pro that would make use of LIDAR to actually do this scanning, feed a spec to the 3D printer.