What is the best way to filter out the pure water from a muddy solution of water and dirt?

This is for a science (specifically Chemistry) lab we were doing. Our teacher brought out a beaker with a muddy mix of water and dirt, telling us to try and seperate the dirt from water and produce as much pure water as possible. We have access to all the equipment at school, like the bunsen burners, beakers and such. He instructed us to create an original way to filter out the dirt. We are allowed to bring materials or supplies from home, although he suggested not to bring coffee filters as that isn't very original... and I have been brainstorming with no conclusions. Any suggestions or cool ideas?