True story.
I was pulled up by a Police officer requiring me to give him a breath sample for excess of .05% alcohol - we have this in Australia.
The officer took the sample and stood next to the Cobra briefly talking about the car. He was a pretty good type of guy.
As I drove off, I noticed that his navy trouser/pants had two large brown burns across the bottom of them. He had been standing against the side pipes as he talked..
I have seen a small rod welded stratigically along the side of the pipes holding silly peoples legs off the hotter section.
Signs can be made at any sign writer in vinyl.