Line a baking sheet with wax paper. Cut the banana into 1/2-inch-thick rounds. Place in small bowl and toss gently with the orange juice.

Skewer fruit, alternating two grapes for each piece of banana, and place fruit skewers onto lined tray.

Place chocolate in small microwave safe bowl. Microwave for 1 minute, then stir well, and microwave another 10 seconds if necessary to melt chocolate.

Using a spoon, drizzle melted chocolate onto fruit skewers.

Place the tray in the freezer for at least 2 hours. Once frozen, skewers may be transferred to a sealable plastic bag where they will keep in the freezer for up to a week. Allow to soften at room temperature for 5 minutes before eating.