Balloon Car ( Lego Racer Light)

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After printing the original balloon, I was bursting with excitement to watch it zip along the floor. My balloon racer had some major flaws that kept me from moving forward. The balloon racer was incredibly heavy and leaky - not exactly what you'd call air tight. After slapping on some rubber cement, the craft finally started rolling 3 inches. Lighter and more airtight than the original balloon car, my new design was a game-changer. I printed with three solid layers and an infill of just 0.2. Then, I added a Lego man to give it some personality. Next, I drilled three tiny holes and attached my own wheels - M3 bolts worked perfectly as axles. This new balloon car flew across the floor for about 24 inches using a humble 9-inch balloon. Now, I'm challenging you to top my design with an even better balloon car. Here are the rules: Everything must be printed (except for the axles). You'll need to use a 9-inch balloon or smaller to power your creation. Can you come up with something that will leave mine in the dust?