This unique coffee dripper was made from rattan and transformable. I used the same technique when I made tableware (https://www.instructables.com/id/How-to-Make-Tableware-Without-a-Machine/).
Step 1: Preparation
I used 1.5mm-thick rattan strips and bolied them to make soft and reduce the scent of the rattan.
Step 2: Roll Up
I rolled up while the strips kept wet. After done to roll up, I polished the surface with sandpaper.
Step 3: Dye and Form
I dyed it with coffee to assimilate coffee stains by use and then formed a conical dripper.