It provides the most accurate tactile feedback in 3D — as if you were actually touching the object with it. Inverse3 can be used for game development and modeling, as well as remote robot control and even surgeon training — with movement accuracy down to 0.01 mm. It costs $10,000

The Pepper Ball Blast is a small self-defense device that uses pressurized CO₂ to disperse a burst of PAVA pepper powder. Rather than shooting projectiles, it releases a wide-spreading cloud of irritant powder