Thanks Dennis, you and I are a lot alike when it comes to detail.
Tom, the plastic wrap is "Carpet Shield" self adhering carpet covering mainly used when having an open house or laying down during painting. It comes in a 24" roll and I simply take a hack saw and cut it in half. I put this on the tires before they ever go on the car. Doing this keeps all the shop dust and dirt from contaminating the tread surface. When the car goes to a show I simply remove it when the car is positioned and then reapply it prior to reloading the car. One thing to note however, it works too good on slicks and the only way I could remove it from Ann's tires was to "spin them at a high rate of speed while making contact with an abrasive surface".............