Dual electric toothbrush shelf with hidden wires

My wife wanted more space on our small bathroom sink area and asked if I could make a little shelf for us to put our toothbrushes on. This little shelf allows you to bundle up the extra wiring from the chargers and hide them inside the shelf. There are holes on the top/back to allow a 2-prong plug to fit through. I also added keyholes on the back for stronger mounting, though I just used some 3M VHB tape and it sems to be holding well so far. I also used a small bit of VHB under each toothbrush charger to keep them laying flat and in place.

This is my first time 3D modeling anything, so please share any feedback!