I use Nature's Own whole wheat (50 calories per slice) bread and Hellman's low-fat (20 calories per Tbsp) mayo.
Ham with honey mustard, lettuce and tomato
Turkey with fresh baby spinach and cranberry aioli (Blend 1 Tbsp cranberry sauce, 1/2 Tbsp. Hellman's low-fat mayo, chopped fresh or crushed dried rosemary to taste)
Cucumber sandwich -- spread 1/4 cup Philadelphia Garlic Herb whipped cream cheese (comes in a tub) on bread and top with thin slices of cucumber.