The Makedo Cardboard Construction Classroom Set allows students to build and construct out of cardboard. Cardboard is a fantastic resource because it almost always available, free, and relatively easy to construct with simple tools like makedo.
The classroom set of tools contains over 720 tools that help manipulate cardboard, including plastic screws and tools. Makedo is ideal for grades K-8 and can help students with fine motor skills. Each purchase comes with a lesson to get started with Makedo that aligns to the Indiana Science and Engineering Process Standards.
More about Makedo: https://www.make.do/pages/what-is-makedo