We based this set of STEM projects on the book, What Can You Do With a Box?, by Jane Yolen.
Students got a 6 x 6 x 6 cardboard box, which you can buy in bulk on Amazon (you can get 25 of them for $6.95)!
If you want detailed directions and lab sheets, you can buy this STEM pack in my TpT store! Click here for the link.
These look great displayed in the hallway or classroom! Our students were so proud of their creations and they loved giving a short presentation to their classmates about their box project!