Since it was recently announced that iOS 16 would support Nintendo Joy-Cons over bluetooth natively, allowing them to be used for games and apps like Steam Link, I decided a combined mount to make it easier to play would be handy.

The switch joy-cons slide into place and click just like on the main system, and the holder has room to account for a phone case as well as the phone itself. It was designed around an iPhone 13 Pro Max, as that's what I have, but would likely accommodate most other phones. (Though I don't know if Android phones support Joy-Cons or not.)

Just print the pieces out, slide the side handles into the center body, and thread two rubber bands from the pegs on the grip down to the posts on the bottom of the holder. You can see in the photo how it should be attached.