How do you make a lifeboat out of a paper cup?

To make a lifeboat out of a paper cup, start by reinforcing the cup with tape to ensure it holds its shape and is watertight. Next, create a small sail using a piece of paper attached to a toothpick or stick, and insert it into the cup for stability. Finally, test the boat by placing it in water; it should float and potentially carry small objects. Adjust the design as needed for better buoyancy or stability.