Can Magnetic Forces Propel a Model Boat on Water?

[nate205]

Homework Statement

I need to find a way to propel a model boat using magnetic forces, without the use of battery or electrical power.

Homework Equations

Unsure (I am in grade 4)

The Attempt at a Solution

I have looked into the use of 9V batteries, and use of an electric circuit, but I need to use natural forces (if necessary - combined with magnetic). Is this possible? And any advice on how it can be done?

Thank you very much.

 

[adjacent]

Can't you use two magnet?
One in the boat and the other in your hand.