I'm doing a heat project in school and your supposed to use household items to wrap around a water bottle and when the day comes my teacher is gonna put boil water and see if it can work and hes gonna time how long it can go. the items im using is some ultra cloth tin foil and a large Bristol board to put around it and im wondering if that will work and if i can get Styrofoam like which kind do i use the plastic cup one of the ones to keep something like a TV from breaking?