"The recent furor over the drug company Mylan jacking up the price of lifesaving EpiPens has brought out the biohackers. A team of DIY enthusiasts calling themselves Four Thieves Vinegar have published plans that will allow anyone to build a device to self-inject epinephrine on the cheap.... The pharmaceutical company Mylan, which is the only manufacturer of the device, was recently shown to have raised the prices of a single device from $57 to $318 -- that's a 461 percent increase -- since acquiring rights to it in 2007."