I also like this idea. For all of you that grow your own herb's, here is an idea to dry them for further use.
It's merely a used frame, and some screen . It can be made to lay flat or hang.
They used 2 pieces of screen a little large than the frame and stapled one piece to the frame, and the other one they used eye hooks to attach on the front.
For hanging , just attach eye hooks on the back, and a piece of wire from one hook to the other, and twist tight.
To lay flat, attach small pieces of wood on each corner, to allow air to flow underneath.