The project pictured below is a version of Ryan Jenkens' #MechanicalCircus. In our classroom we wanted to do something similar, but with a base the students could actually design and take home in a single class. My students will take this paper straw design and iterate on it over the next year. I can't wait to see what they come up with.
The theme we are starting out with this year in K-8 is simple hand tools before digital design. 3D printers and laser cutters are great, but we want to start by focusing on the power of short design cycles and rapid design iterations.