Ok, so I don't know what I put in the search this time that was different, last time I searched I got nothing.

I found this on an Iguana web site:

"Your iguana will need branches to climb on. Chose branches of appropriate diameter and strength to support his weight. Branches from outside can bring in pests. I suggest either baking at 320 for 20 minutes or drying out over the outdoor gas grill for 30 minutes. Keep branch away from flames (for the obvious reasons). Choose hard wood always. Pine and cedar will smoke heavily when baked! I usually use maple or oak."

Any ideas?