Styrofoam Boat

My boat design varied from using water bottles to tin foil to styrofoam. I found out that styrofoam works the best because the water bottles never floated straight, and the tin foil always lost its form. I set up my boat in my bathtub but decided not to risk putting the hairdryer anywhere near the water. I couldn't take any pictures of my boat but I have a picture of a very elaborate boat made of styrofoam.