A hobbyist named Patrick Priebe has come up with one gun you don’t want your kids to be playing around with. Called the DIY Pulse Laser Gun, it does exactly what its name says – it shoots lasers. This device made in the comfort of his own home is not something you want to mess with. According to the description of the gun: “It holds a small pulse laser head, capable of generating a kW-pulse of coherent infra-red light. One shot can punch through a razorblade, plastic, 5mm Styrofoam when focused. Effective range on 3m (dark surfaces)…you will see a stinging flame and a 5mm stain will remain on target. The goal was, to create handheld device…AS COMPACT as possible. Its 320mm long and weights about 2 pounds.” It’s okay if you don’t understand what all that meant, hit the break and watch the video of the gun in action. It scares me to think that such an innocent-looking gun is capable of blowing holes into things. Next time I see a kid in the neighborhood brandishing a gun like this, I might think twice about crossing his path again.