Bad Piggies Rise and Swine Bonus Level 2-VI (2-6) can be 3-starred using two contraptions. For the star box, use three wheels on the right side and a soda bottle on the left, nozzle facing downward. When you reach the bottom of the hill, use the soda to push over the ledge and into the jagged pit below. It’s likely impossible to avoid Krak-Snap that way so instead remove the top wheel and point the nozzle rightward. Very quickly shake the soda bottle to push the light contraption leftward. Slowly make your way back down the low road.
If you have a different strategy for completing this level feel free to leave a comment below.