This would be great to build with and kid and let them play with it.
Step 1: Building
Flat bottom plastic container
Metal food can lid
I use hot glue to attach the lid of the plastic container to the back. I mounted it to one side to make room for the water wheel. I cut 16 slots around the metal lid and bent them to form paddles. I glued the water wheel to the motor. I glued the motor to the lid. I soldered the wires and used a connecter as a switch.
I glued a piece pf pop bottle on the bottom as a rudder to make the boat go in circles.