Have a messy room? Here's a tool you can build to clean it in an instant
by Mark Frauenfelder from on (#32VD9)
Colin Furze's debut book, This Book Isn't Safe features ten inventions kids can make at home with step by step instructions. Inventions include "Concrete-Crusher Boots," the "Fab Frisbee Flinger," and the "Downhill Racer." Below, Colin's instructions for making the Brilliant Bedroom-Tidy Pulley:
