I was thinking to make a background that can put inside the sealing bag. Then I thought of what happens if I mix the herb with clay? Here is the test I did, and it did still have the smell.
I individually mix with each colour and then make them into a ball and stick on the paper. The powder of herb indeed effect the colour little, but it only turns the colour to a bit yellowy.
After that, I drew on the clay. That still expressed my concept and in the meantime, it does not have the traditional sachet and herb. It was fun to explore the different possibility of achieving one goal.
Here are the final package of the objects.
LUVIANHUANG 