The Smokehouse - Who's Been Cheating?

Six children put their parents on their own quit-smoking course. All cigarettes have now been destroyed and a tough no-nonsense smoking ban has been imposed. CCTV cameras will now detect anyone who dares to light up. But to help their parents through their initial nicotine cravings, the children must build incredible crave-busting contraptions designed to take their parents' minds off cigarettes. They go head-to-head in a crave-busting showdown before the parents are forced to come clean about whether or not they have smoked since the ban.