mini Catapult : Siege Engine Engineering Kit Are you gearing up to defend your fort against a horde of beasts? Look no further because a catapult is exactly what you need! Introducing the mini catapult kit, adorable and perfect for your defense needs. A shrunk down historic replica of Leonardo Da Vinci’s catapult design. With this engineering kit, learn about simple machines. Once built, you can launch mini projectiles and fend off those pesky beasts. Hands-on learning at its best. Building models decreases stress, increases focus, organization, spatial and fine motor skills. A great gift that will bring all ages together for a project. Back to school DIY kit, engineering kit, wooden craft kit. A great item for many retail sites: childrens museum, toy store, hobby store, science museum store.