Bad Piggies Tusk ‘Til Dawn Level 5-11 can be 3-starred using a single contraption. Build a basic helicopter, but remove the left wheel. Place the powered yellow umbrella on the left side of the contraption. Work your way slowly through the level, using the helicopter rotors to move rightward and the umbrella to move left. Grab both star boxes along the way.
If you have a different strategy for completing this level feel free to leave a comment below.