You guys should get a glimpse at some set ups my friends have made on fast cars using unspecified rubber going through trunk floors with out grommets and using metal worm clamps at all ends. At that point, I was surprised they did not use rubber bands, spit and Elmers glue to keep things in place.
I've kept away from those cars on the next lane.
Cheating neat usually, but not always indicates using good materials and hardware.
Some stock car racers used some rather crude ways back in the day when under pressure, but here with time to think and do, we have the luxury of doing it right and neat.