My Idea is use simple square box and fix the label similar idea that I attached.
About the box maybe use brown or white paper like P'Big told .
We can separated type of product each other by colors of label like Designers Field's name card that P'Arm designed.
We won't print graphic on the box but We'll print on the label.
On the label We can inform about our product by cool graphic.
This way I think cost is not to be high.