The Identi-Pens from Sakura work perfectly for creating artwork on many surfaces.
Each Identi-pen marker has two ends. In the video, I use the felt tip end.
What I learned is that pulling the pen toward you rather than away works a lot better. Pushing away, the pen catches and lifts the pebbly cork surface.
After I finished the video, I added more detail to the trivet using the plastic tip end.
The pens are waterproof and will not run or smudge on the trivet.
I have also done this process on cork coasters.
The cork trivets came from Ikea. They are the same on both sides so you have two surfaces to work on.
I think this project would make a wonderful gift.