Modem in disguise
The corner reflector is interesting.
I have the modem "hidden in plain site" with a smaller cardboard box. I could line two of the boxes inside walls with foil but they would be quite close to the modem.
If you look at the attached photos the signal comes in from the right perpendicular to the modem.
The box is cut open on top and back to allow ample air circulation.
It is amazing how well this little disguise works.
My immediate co-workers knew I had the modem but when I asked them to guess where I keep it most of them did not guess it was in the box until I actually showed them.