For our carnival project, my partner and I decided to try a battleship dropper design. Our idea was that you would roll a small ball from a ramp we designed into the various cups on the boat, it should almost look like you were dropping bombs on the battleship. If you land on certain areas like the guns (The large cups on the front and back) and the control tower (The L shaped piece with two very small cups) you get points, the control tower gave lots of points but was hard to hit but gave a boatload of points while the guns were very easy to hit but did not give many points. You need 75 points to "sink" the ship which is just winning.