nitpick time on chemical companies. Owens Corning makes the pink foam (they make the pink fiberglass insulation, too, and used the Pink Panther and Inspector Clouseau in their commercials), and it can be found in lots of stores. Dow Chemical makes the original blue foam, typically more expensive, and it was the product that was originally called "STYROFOAM" (a registered trademark). Dow Corning is a supplier of silicones, a company owned equally by Dow Chemical and Corning Inc. (a company that specializes in glass). Owens Corning is independent, and specializes in fiberglass. And none of this explains why the foam we bought on Saturday is purple!