How Can you make a submarine?

You can make one with a baby carrot, four toothpicks, and baking powder (not baking soda). You will also need a dull knife with a fairly narrow tip. Cut the carrot in half the long way. Eat the other half. Hollow out a small area in the middle of the flat side. Stick the two of the toothpicks in the round side in the front at an angle. Stick the other two toothpicks in the round side in the back at an angle. Pack as much baking powder into the hollowed out area as you can. Place in water. To see it done, go to: http://www.metacafe.com/watch/805804/baking_powder_submarine/