Pyrography Pen

My kind friend Lucy is going to let me use her pyrography pen to experiment with over reading week. She has used it a lot before and said the wood she used was from old wine cases and also said that the pen becomes temperamental when going against the grain of the wood. I wonder if I can use it on found wood? I am also going to ask Matt his advice tomorrow and see if I can get any small pieces of wood to use over reading week.