How do I build a banana peel and cream soda powered motor boat?
Take the banana peel and cut it up into very small pieces. Crush the remaining pieces so that it is very soft. Put the pieces in some sort of container and pour the cream soda in there. Let the banana peel sit in the cream soda for 24 hours in room temperature. Do NOT cover it. After the 24 hours, pour the entire mixture into the motor boat. Then pour another cream soda in there and you are good to go. (Both the cream sodas should be 1 liter bottles.