I really cannot think of any sort of jury-rigged solution that is better than a properly engineered one except maybe in one case I encountered.

Had a problem with my car. It was some kind of pipe connector or something, but it’s in the engine in a spot that can get quite hot and it was plastic. The mechanic told me this specific part is prone to melting because the plastic is not rated for how hot it can get where it is. So they make their own out of metal to avoid future problems.