OVER. THE. TOP. Two decades worth of experience twisting balloons has given John the opportunity to hone his skills and make some truly spectacular large scale pieces. His largest Balloon Sculpture is the world record holding Poptimus Prime, which stood over 50 feet tall! You can view the Time-lapse video of his construction Here. John's also made large installations for different corporate and charity events, like the AT-AT made for the Festival of the Trees at the Cradle of Aviation.