Bad Piggies Rise and Swine Level 2-24 can be 3-starred in two steps. Build a basic cart with two wheels above and below. Let it roll down the hill, to collect the star and use the soda bottles to propel it to the finish line. The “no wheels” contraption will include one frame with both soda bottles facing down. This should send Freckles high enough to land on the other end, and cross the finish line.
If you have a different strategy for completing this level feel free to leave a comment below.