KiwiCo Tinker Crate - Make Your Own Trebuchet

KiwiCo Tinker Crate - Make Your Own Trebuchet Engineer a tabletop trebuchet and see how far you can launch a ball! Tinker Crate is a subscription box for kids and tweens ages 9-16+ created by kids subscription box company KiwiCo. Each monthly Tinker Crate contains all the materials and instructions needed to create innovative, hands-on STEM projects, as well as a "Tinker Zine" full of educational information and additional activities.