We wanted a small, but the local big-box stores no longer sell 12" curio shelves. Rather than make one from wood, I elected to print. I saw a few other shelves specifically for the Home Hub, but they were nontrivial to print, bulky, or not perfect enough for what we wanted.
The first (smallest) iteration is pretty minimal, but didn't leave room for the plug sticking out the back. It holds the Home Hub perfectly, but I couldn't fix it to a cabinet without drilling holes.
I added a block in the back, with a cutout for the plug. This works great with some double-sided mounting tape, but it's too small: we can't rotate the hub.
My wife wants to be able to rotate it to face into the kitchen, so I extended the shelf to about 6", maxed out my width (9"), and left a side access port to secure the cord. Now it's mostly a small shelf with lines that mimic the radii of the home hub, but it looks nice and holds up well with good 3M mounting tape. I left the cord semi-coiled, it stays put on the shelf and lets me move the hub around pretty freely without having it look un-tidy.
This was designed with no overhangs, needs no support / raft / etc. Fat nozzle and tall layers will go a lot quicker.
Proto-Pasta Matte PLA
designed for use with a giant 0.75 nozzle, but would print fine (if slow) on 0.40 or smaller.