i'll second that motion
more incognito containing forms are required
the more boring the better
let me think for a moment, what is a good cylindrical object of zero interest...
curtain chain things often have scope of a cylindrical object stuck somewhere along the cable, this could work, just need a way to open it up
fake cable ferrite noise absorbers (make the rings of each segment with a slit on one side wide enough for a typical USB cable)
(could even make them real, steel washers with the slit cut could actually reduce noise just like a ferrite one)
can't think of any other easy cylindrical things that exist in a modern house that are low key