Ice Release - We made this our self and its easy! One 35mm film case, two hooks with metal washers fixed to their ends, fill with water and freeze. Under the hot studio lights it takes about 25 minutes to melt, which for us is ideal but by increasing the size of the case or insulating it will significantly increase the time for the ice to melt and the escape! We used our first version so Lucy Zara could escape to torment her friend Frankie but we have also used it in many movies throughout the years as it is a good dependable means of escape.