After looking through the pictorial and a couple other websites, I've found countless beautiful orchids growing in their special semi hydro pots, and I would like to know how to make my own or what kind of container is used to make them. I know that conventional pots with drainages holes won't work, but where can I find plastic containers with a suitable size selection for S/H? What kind of containers do most people use?

Thanks for anything that will shed light on S/H pots.