Balloon powered Jet Car

thingiverse

Experience thrill with this easy-to-make toy! Attach a balloon and watch it zoom across the floor. However, note that certain parts are required. The wheels used were from an older Meccano set, featuring metal axels with 3mm square bushings and a hollowed-out 4mm cavity. Just add wheels, inflate the balloon, and enjoy the ride! For optimal performance, consider enlarging the exhaust port from 4x4mm to around 5x5mm for increased thrust in a shorter duration.