Rusted out hole in the floor of my first car. I am somewhat ashamed to admit but it was much like an in car trash can that never needed emptying. Put a piece of tractor fender and a floor mat over it in the winter.
Later a piece of seamless steam pipe for a jeep bumper. Worked great. Much stronger than a fire hydrant.
In about 1997 I had a '74 Ford f100 that had a rust holes in floor. An "acquired" pair of road speed limit signs and some rivets fixed it nicely!!
