I got a guy who wants receptacles along his drive way for his xmas lights (the driveway is lined with pine trees).

He wants them to be inset, if you will, so that he can run over them with his lawn mower and not have to weed eat them...is that even possible. Do they make an "underground box" with some sort of flush weatherprrof cover? There has to be a way to do underground receptacles, huh?

Any suggestions for materials I should look into?