Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:6099703.

Unique Tree of Life Coaster

Cork pads for bottom of coaster... https://www.amazon.com/gp/product/B0821M69BH/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

UPDATE: Added holder which will hold four coasters with cork backing.