Mix ground ham, 1/2 cup mayonnaise, pickle relish, and mustard until well blended.

Mix chopped eggs, 1/4 cup mayonnaise, pimiento, and chives until well blended.

Season egg mixture to taste with salt and pepper.

Mix flaked salmon, olives, and 1/4 cup mayonnaise until well blended.

Season salmon mixture to taste with salt and pepper.

Mix ground chicken, pineapple, 1/3 cup mayonnaise, and green pepper until well blended.

Season chicken mixture to taste with salt and pepper.

Cut crusts from sandwich loaf.

Cut bread into 5 lengthwise slices.

Place 1 bread slice on serving platter and spread with butter and ham mixture.

Spread butter on both sides of 3 more bread slices.

Cover ham mixture with a second bread slice, topping it with the egg mixture.

Cover egg mixture with a third bread slice and salmon mixture, then top with the fourth bread slice and chicken mixture.

Spread 1 side of the remaining bread slice with butter and place it, butter side down, over the chicken mixture.

Gently press down on the loaf.

Beat cream cheese and remaining mayonnaise with an electric mixer on medium speed until well blended (frosting).

Spread cream cheese frosting over the top and sides of the sandwich loaf.

Wrap securely and refrigerate overnight (at least 8 hours).

Garnish as desired.

Slice to serve.