Balloon car jack

This is one of those I should have thought of that! inventions. Using all the resources available when a person has a flat tire, the exhaust air jack uses exhaust coming from the tailpipe of your car to blow up a balloon that will lift the car from the side. I would feel safer changing a tire with something like this over a standard jack because I’d be more comfortable with the larger radius holding up the car in hopes it would be less likely to fall on me. Nice job! Where can we buy one? Here.