Sometimes cheap toys have the most clever designs by necessity. All that motion from only ONE spring! | By Mark Rober | Facebook
Mark Rober on Twitter: "Love finding the teachable moment. This is one my favorite @crunchlabs boxes." / Twitter
Coming up with these STEM projects every month for kids to build would be my dream job (behind only NASA and YouTube 🙂 I got to tour KiwiCo headquarters... | By Mark
![Automated Recorder | Doodle Bots | Creepy Picture - Mark Rober Creative Engineering Project 2 - YouTube Automated Recorder | Doodle Bots | Creepy Picture - Mark Rober Creative Engineering Project 2 - YouTube](https://i.ytimg.com/vi/ozZYn0li6A8/maxresdefault.jpg)