Halve hard-cooked eggs lengthwise. Remove yolks and mash with desired combination of seasonings. Refill egg whites.
1. For 6 eggs use 2 tablespoons mayonnaise, 1 teaspoon vinegar, 1/2 teaspoon salt, dash pepper, 1/4 teaspoon paprika, and 1/2 teaspoon dry mustard or 1 teaspoon prepared mustard.
2. For 6 eggs use 2 tablespoons mayonnaise, 1 tablespoon horseradish, 1 teaspoon chopped sweet pickle, 1 teaspoon parsley, 1 teaspoon salt, 1 teaspoon dry mustard, and a dash of paprika.
3. Other combinations may include: horseradish, anchovies, parsley, chopped onions or chives and flaked seafood.