Bad Piggies Flight in the Night Bonus Level 4-V (4-5) can be 3-starred with two contraptions. Without using the wooden wheel, use three wheels on the contraption and an umbrella on the back side. It’s pretty easy to reach the finish line. To grab the star box, however, is very difficult. Use the wooden wheel in the bottom-left but the same cart otherwise. Open the umbrella when the cart is upside-down to make it re-flip over the ledge.
If you have a different strategy for completing this level feel free to leave a comment below.