Join Date: Oct 2008
Location: Salt Lake City, UT
The secret is pretty simple. Use peat, mold it into a ball, and plant what plants you want in it on the top side and wrap it with moss (sphagnum, I've seen others use Java) to hold it together. There's no one way to do it really, it's just an aesthetic, and peat is merely how the Hong Kong people I know here make them.
I learned while here in Seattle that Wabi-kusa as we know it has been a kind of home-made plant ball amongst some asian cultures for a while, especially popular in Hong Kong. But it was first made into a product by ADA, and they do own patent and trademark rights to it in the States.
Aquascaper for life.