That’s a very lucky lad grinning at you in the beginning of this video from his dad, Instructables user Steve Moseley, who designed, built and installed this elaborate marble run around the ceiling of his room.


Sean Michael Ragan

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and My work has also appeared in ReadyMade, c’t – Magazin für Computertechnik, and The Wall Street Journal.

  • whiskeywaters

    Can I trade in my title as “Coolest Dad Ever” now? Or do I have to wait until the official polling is over?

  • Shadyman

    Hey, I’d be smiling like that too if I were him!