I'm going to teach you wood burning without an official wood burning tool.
Remember we are working with hot tools be careful and don't be stupid.
Step 1: The Stuff
Step 2: Design
Take your stencil and trace the design on to the wood.
Step 3: BURN
Using the soldering iron follow the design you traced on the wood.
Step 4: The Final
Congratulations! You did it.
I love this method of wood burning using a soldering iron because most people already have one so a new tool is not required.