The Liberator is a completely 3D printed single-shot pistol that can shoot 9mm.

The Washbearis a completely 3D printed revolver.

3D printed ammo is currently in development.

They aren’t very practical, but can likely go through metal detectors.

Neither will 99% of 3D printed guns. Most 3D printed guns use metal parts, and ammo will likely be detected as well. Only single shot, entirely 3D printed guns with plastic ammo have any chance.

Yeah, if you use earbuds, Bluetooth is so much better. I don’t know why wired earbuds are so garbage, but I had two die in three years. My headphones still work after seven, but the pads are worn off, so I stopped using them

Wired Earbuds or Headphones? Most wired earbuds are crap, so it makes sense to use Bluetooth. Wired Headphones should not break. I don’t want to argue with your experiences, but I have never seen headphones break. I used a pair for seven years, and only stopped using it wasn’t worth it to buy new pads (the headphones cost $20, pads $10).