@rail posted:I wouldn't recommend using real salt, as it is corrosive. Encapsulated in paint, or glue might eliminate its corrosiveness, but I would recommend using crushed marble. It can be found at building supply houses that sell brick, stone and other masonry supplies. Crushed marble is used as an alternative to white sand, and looks very similar to real rock salt.
@rail,
Those piles look awesome. Totally convincing. Thanks for the crushed-marble tip.
I agree not to use real salt. When I said "real", I meant real piles, not real salt.