Pyrography is the art of "drawing" on wood using a stylus with an electrically-heated tip. For those that have mastered drawing in ink and are seeking another way to make indelible marks, pyrography is a good way to add visual interest to plain surfaces. It's something like creating tattoos on wood rather than flesh.
It's a little less convenient than working on paper in that it must be done in a ventilated area and requires power, but the aesthetic effect, properly done, seems well worth the effort. I also like the natural imprecision conferred by handwork, as opposed to the machine-based perfection of laser burning.
If you're interested in learning more, there's some great info on how to get started with pyrography on the website of artist Lora S. Irish. She covers the different types of woodburning implements, how different tips yield different patterns, simple practice patterns and more.