Kludge Grandmaster (Class III) Alishan Mao has crafted a nifty little quadcopter with attached LED lighting. Aptly named the Widowmaker, this flying beast only needs a lawnmower attached to it, and the human race is pretty much doomed. Fo' realz.
Custom rifle manufacturer DoubleStar built this modified AK-47. Its most obvious feature is the chainsaw fixed to the barrel, powered by a lithium battery so you don't have to be attached to an outlet when the zombie apocalypse certainly most definitely happens. If Ash had this, Army of Darkness would be about half as long.
In the Netherlands, Domino's Pizza's electric scooters didn't make enough sound to warn oncoming bikers that they were coming. So, to fix the potential danger, Domino's installed devices on the scooters that emit fake engine noise... with a few added sounds here and there!