1. This one on my arm was done with ground up pencil lead , 2. However, the pencil lead still creates graphite dust that conducts electricity. 3. The recipient rubs pencil lead lightly over the markings to read the message. 4. AMD Athlon and Athlon XP CPUs are generally unlocked by connecting bridges ( pencil lead . 5. Contrary to popular belief, pencil leads in wooden pencils have never been made from lead. 6. You don't replace a . 293 hitter, a three-time All-Star, with a little pencil lead . 7. He also make ever-pointed-pencil leads that were very popular. 8. It used a razor blade and a safety pin or pencil lead to form a demodulating junction. 9. Graphite is a slippery, black substance used as a lubricant and for making pencil lead , among other things. 10. This was his first tattoo, created by himself as a teenager with a sewing needle and pencil lead .