A friend of mine posted this video to facebook and I thought it was worth sharing here. I've seen fantasy book where cats are used to keep rodent populations down, but I don't think I've ever seen one mention actual mouse traps. Shawn Woods has made this Egyptian clap bow trap out of wood and twine. If you're squeamish, stop watching around the 4 minute mark as he does use the trap to kill a mouse. The opening explains how to make the trap and how it works.