What do Tahongyou do when you stop building spaceships for NASA? Create massive toy NERF guns, of course. 

Former NASA engineer and current YouTuber and inventor Mark Rober was a little sick and tired of messing around with teeny dart guns, so he created what he calls the world's largest functioning NERF gun. 

With the help of his friends Ryan and David of Eclectical Engineering, Rober built the gun using a wooden frame and modified paintball tank, which propels custom darts made from pool noodles and plungers. 

Now, the darts exit the chamber at about 40 miles per hour, so Rober should have no problem protecting himself from office shenanigans.

However, this clearly this isn't an actual NERF gun, so some NERF purists out there might dispute the "largest" claim. Still, it sure is cool, and will put anything you can buy at Toys R Us to shame. 

Bonus: Corgi butts in slow motion

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