At work I was fixing a truck and there was a loose mirror, all the bolts and shit were tight but there was a gap between two pieces of metal, went back in the shop and found an unopened pack of metal thinggys that were tapered, took a hammer and pounded a few into the gap and cut the excess off.

Another truck had a gap in the seal around the wing window. I MacGyvered it back to working condition with a wire, piece of tape and some cardboard.

I love my job.