Your biggest car hack job ever

Back in the day I was helping a buddy fix up an old Valiant (69 or 70 IIRC) to sell to his brother. The rear mounting bracket on the drivers side leaf spring had rotted away and the rear shackle punched a big hole up through the trunk floor. We jacked up the car till the spring came back out of the trunk and mixed up a big Bondo and chicken wire pie with extra hardener to plug the hole, then set the car back down on it. Worked great and we drove it like that most of the summer until totally wrecking it one night doing some "stunt driving". His brother never did buy it after that.