Bad Piggies Tusk ‘Til Dawn Level 5-8 can be 3-starred using two runs with the same contraption. Place both powered wheels on the bottom of the cart and normal wheels on top. Face both fireworks rightward. To beat the clock, take the high road at the beginning and flip the cart once. As it stops on the incline, blast off with the fireworks and use the wheels to power your way to the goal. The star box is easier, taking the low road and slowly traversing the level.
If you have a different strategy for completing this level feel free to leave a comment below.