TV show idea: autonomous drone micro-heavy machinery building contest. Each team can consists of six machines, each of which can weigh no more than say, 1000 lbs. One of them must fly. Each team is given a equal amount of cement, steel mesh, fiberglass mesh, dirt, and water. From these supplies, they must build a castle suitable for human habitation. At the end, the teams must tear down each other's castles. They'll be judged on speed, durability, spaciousness, comfort, and beauty.