Systems efficiently using heat to create a creative design using a wood burning pen are disclosed. The embodiments a wood burning pen equipped with two receiver tubes angled 0.5°-4° away from each other, two screws capable of tightening the contact between two contact rods and the receiver tubes, and a tip wire connecting the two contact rods. The contact rods are inserted into the receiver tube openings. The contact rods are tightened into place with the screws. The two receiver tubes conduct electricity through the body of the wood burning pen. Because of the screws contact with the receiver, the electricity travels through the contact rods, heating tip wire. The tip wire may then be used to create decorative designs in wood.