Thread pound cake cubes on 2 skewers. Thread pear pieces and apple pieces on 2 to 3 skewers, leaving 1/4-inch spaces between pieces. In a small bowl stir together orange juice and cinnamon. Brush cake cubes and fruit with the orange juice mixture. Transfer skewers to a baking sheet or tray to transport to grill.
Lightly coat unheated grill rack with cooking spray. For a charcoal grill, grill fruit skewers only on the rack of an uncovered grill directly over medium coals about 10 minutes or fruit is tender, turning skewers frequently. Add cake skewers the last 5 minutes of grilling. (For a gas grill, preheat grill. Reduce heat to medium-high. Place skewers on grill rack over heat. Cover; grill as above.) Remove from grill.
Before serving, drizzle kabobs with honey and sprinkle with toasted coconut. Makes 4 servings.