The patrols must create a brand, decorate a toothpaste box, create a poster, and present a 30 second TV advert.
Toothpaste boxes made from white card, or just turned inside-out and re-glued (although won't look so nice).
Brief the kids of the things they need to do as mentioned in the description. Would work best split over two evenings so they can bring in props for the TV advert.
At the end, each patrol should show their poster, box and act out their advert. "Lord Sugar" could ask probing questions etc.