We don't write about many tattoo machines here on Giz, preferring to keep our gelatinous arms free from skin-breaching contraptions. But the Neuma Hybrid has an interesting pitch.
The original Neuma was the world's first air-driven tattoo machine. Its design somehow promised a less painful tattoo (we're confused as to how since the needle is still a needle) and it was crafted from solid aluminium for easy medical-grade sterilization. The new Neuma Hybrid is lighter—a mere 105 grams—and it operates both under air pressure and electricity...which is somewhat/almost/kinda/not really at all like your Prius.