Here are some tools that can help to support your students during a cardboard challenge in your makerspace.
Cardboard Challenge 2016: More Awesome Than Ever
Cardboard Challenges: No Tech/Low Cost Maker Education
Downsizing Before A Move: Decluttering And Organizing Tips
Cardboard Challenge - Instructables
How to Connect Students to the World with the Cardboard Challenge
25 Inventive Cardboard Activities and Games for Learning
More for Less: How a Cardboard Box is the Best Toy for Kids
Cardboard Challenge – Knecht STEM
Makedo Cardboard Construction Tools For Kids
The 2015 Cardboard Challenge - Renovated Learning
Cardboard Challenge Tips Part 2: More Tips and Tricks
Out of the Box: 25 Cardboard Engineering Projects for Makers (DK Activity Lab): Westing, Jemma: 9781465458964: : Books
Cardboard Challenge: Introducing New Skills in Authentic Ways