I really admire people who can improvise solutions on the fly. It's what made MacGyver seem like a technological and scientific wizard, and what made that a great show. MacGyver and people like him are creative enough to see promise in things that seem to have none and make things work that shouldn't.
That said, not every improvisation will be pretty or work for a long time, but then, they don't have to. They just have to get a very specific job done until a proper fix can be made. And, well, these sure qualify, and they might just give you some inspiration if you find yourself in a jam.