I bought a wooden candy dish at a garage sale. It is lined with the same looking material found on this table. My step-dad said the shells are called "Kabba" shells and were popular in the 60's. I searched online and couldnt find anything about these "shells". I searched for "kabba, kaba, caba, cabba, koba, kobba, etc" but to no avail. Can someone please ID these shells for me They are flat and very thin and pliable.