Darts are awesome, but they're tricky to set up at work. Real darts aren't super safe and leave walls full of holes, and safety darts suck hard. Mark Rober has got a solution that's simple, elegant, and awesome.

You might remember Mark from his dual-iPad hole-in-the-stomach Halloween costume. Once again, Mark is demonstrating how commonly available items can be used in novel ways to create new experiences. It's called creativity. It's one of the reasons why Mark works for NASA.

All you need is a magnetic white board, which comes standard in many offices, and a few magnetic balls, such as Neoballs from Zen Magnets or Buckyballs. Awesome.

Got a fun office-hack of your own? Share it in the comments. You'll be making the world a better place.