Ash

Several years ago, I purchased a vial of the ash that comprised 

the ring around Jacob's cabin in episode 3.20

Fans of LOST were vacationing in Hawaii and while on a LOST location tour,

discovered that some of the ash still remained at the site.

Below is a picture of the site and a screencap of the same location from 

Episode 3.20.  

My vial of ash currently is displayed in a wooden box

purchased from the LOST prop warehouse sale, 

along with sand from the beach at the LOST Season 6 premiere 

in Hawaii (appropriately stored in an airplane-sized Smirnoff bottle) 

and a prop replica of the medicine used to inoculate against "the sickness".