Saute the ham 2-3 minutes on each side. Split and toast the english muffins. Heat the oysters in the butter over low heat, just until the edges begin to curl. Season with salt and pepper. Cut the pieces of ham more or less to fit the toasted muffins. Put 3 oysters on each piece of ham on the muffins. Spoon 2-4 tablespoons of hollandaise over each.