1Cut tapered ends from cucumbers. Peel lengthwise strips of peel every half inch with citrus stripper. Cut cucumbers into 5/8- to 3/4-inch slices. Make indentation in center of each slice, without going all the way through, by scooping with small melon ball cutter.
2Fill each indentation with about 1 teaspoon ham salad. Cut each lemon slice into 6 wedges. Top each appetizer with lemon wedge.