It's maylasian driftwood, I got it from Poison Dart Frogs | Food Fruit Flies Supplies Vivarium Terrarium Moss Habitats | Wood Vine Cork Tubes | Consultation Sales by Vivarium Concepts

I shot them an email telling them what I was looking for and they totally exceeded my expectations At first I placed a large order for some ghostwood through save-on-crafts.com, but what I got was, well, rather pathetic. So I sent it back and went with vivariumconcepts instead.