@Rainy Day Auto and all others interested.
Go to your local rock farm/quarry or mine with conveyor belts. Ask if they have any used conveyor belt material they are willing to part with. It's black, it's flat and easy to cut with a Stanley razor knife. Could be anywhere from 18"-48" wide by no telling how long. Look at the corded inner core and determine the thicker rubber side to be put next to the object to remain undamaged. Easily drilled with a power drill. There are specialty tools for that purpose, not worth messin' with for just a few holes. A sharp wood chisel and a wooden backup and hammer will work too if square holes are not an issue.