I am not sure what real purpose this serves but I found this while surfing the internet and thought I would share.
Chinese wholesale, no real info listed:
Link
Apparently it is an electronic lighter that charges in a USB port.
USB lighter
1,no Gas no Oil.safey
2,rechargeable
3,USB interface
USB lighter
the environmental protection electronic cigarette lighter is powered by a rechargeable battery.
Battery can be charged and discharged hundreds of times.
This product's USB interface is only used for charge.
it can be connected to your computer,mobilephone chargers and any other charger whose output voltage is less than DC5Vą0.5V and output current is less than 3000MA.