Academy Da Vinci Machines Series Flying Pendulum Clock -

Da Vinci Rolling Ball Timer - Da Vinci Machines Series Kit by Academy #18174

Academy Da Vinci Machines Series Helicopter - #18159 by Academy Models

Pathfinders Leonardo da Vinci Premium Aerial Screw (Helicopter Flying Machine) Wood Model Kit

Leonardo da Vinci Catapult Kit

Edu-Toys Leonardo Da Vinci Paddle Boat

Academy Da Vinci Machines Series Crane 18175A

Academy Da Vinci Catapult

Academy Da Vinci Arch Bridge Science Kit

LEONARDO DA VINCI Self-Propelled Cart by Elenco

Steampunk Clock Ugears 3D Mechanical Model, Self-Assembling DIY Craft Set, Wooden Box School Project

Academy Da Vinci Machines Series Flying Pendulum Clock - #18157