Place ice-pop mold in the freezer.

Place 10 pop sticks in a bowl of warm water.

Peel bananas and break each into several pieces.

Place banana pieces in a food processor.

Add sugar, lemon juice, and vanilla extract to the food processor.

Blend until very smooth.

Divide the banana mixture among the ice-pop molds.

Poke the fruit with a skewer a few times.

Tap the bottom of the mold on the counter to release air bubbles.

Place the lid on top of the molds.

Insert pop sticks into the molds.

Freeze for 8 to 12 hours.

Remove the pops from the molds.

Drizzle the pops with chocolate syrup.

Let the syrup set for 30 seconds before serving.