I got served an ad for a "behind sofa mini-table for chargers" and oh my god what a perfect thing for my couch that is next to a wall where we can't charge anything and we accidentally drop things constantly.
I search for tips to make my own and it's a few 2x4s and screws and stain, can be built in an hour. I bought some round USB charge ports and wireless charge pads at Amazon that even include a hole saw. This looks like a great project and it will fit perfectly in the space when I'm done.