Blend bananas, yogurt, blueberries, strawberries, protein powder, and enough almond milk to achieve your preferred consistency in the bowl of an electric blender until smooth.
Pour liquid into cups until they are 75% full. Cut 12 squares of foil and fold them securely onto the tops of the cups. Slide the wooden sticks through the center of the foil squares. Place cups on a plate.
Freeze for 8 hours.
Remove from the freezer, remove foil, peel away cups, and enjoy.