hmm in the link you gave me it says the following......
Driftwood :
are old tree branches that are used in aquariums for decoration. It is important to sterilize or "cure" the driftwood before using it in your tank. You can boil it (for a couple of hours) or simply let it soak in an aquarium use only bucket for several weeks. Boiling is quicker and you can usually get it ready after a few hours of boiling. Driftwood will release tannins that can soften the water and also cause a drop in
pH.
it talks about being able to make your own? just by boiling it?