Creating spalted wood

The Forest Products Laboratory has a great article (pdf) on how to make your own spalted wood. Essentially, it's a lesson on how to grow mold inside wood. Spalting is thin black fungal lines that grow along the grain lines in wood that's been sitting in humid and warm conditions.

After reading this, I bagged a rough-turned maple bowl in a plastic ziplock with wet (I added water from the sink) shavings. A few days later, there's mold! It's not spalting yet, but there's certainly mold growing on the outside of the bowl. (Don't worry, it all gets turned away in the end.) It can take a few weeks or even months, but I'm fairly certain I'll get some.