Design a shelter that would keep animals safe.
Design a modern horse and carriage to protect the environment.
Design a new submarine that is run by robots.
Design a boat that can fly.
Build the tallest straw tower that could withstand an earthquake.
Design a ferris wheel.
Build a 3D model of a house.
Build a 3D model of a diamond.
Build a 3D model of something that swims.
Create a windmill
Design a jacket or suit