In November I saw this youtube video on turning a USB Air Purifier into a $75 USB Killer:
My soldering skills are basically nonexistent so while I had some time off around the holidays I decided this would be a decent project to help improve them.
So in early December I ordered 3 of these from Amazon:
USB ionic Oxygen Bar Freshener Air Purifier ionizer For Laptop Black+White
These from GearBest would also work:
Rotating USB Style Air Cleaner – WHITE AND BLACK
You then solder the other end of wire to the data lead on the USB connector:
Disclaimer: Dont be a JERK. This will fry motherboards. Dont plug it into anything you are not ready to replace.