What do you need?
· A pencil
· A 12v battery (like car ones)
What do you have to do?
First, split the pencil open (Picture 1). Then extract the pencil lead, and brake it into 2 sections (each section will last 5-10 minutes. Take some wire and attach it to the lead (Picture 2). Finally, attach each wire to the - and + of your car battery (Picture 3). Now you can use it, but hurry up, and do not use it near gas!
Picture 1
Picture 2
Picture 3
Cya.