BEND, Ore. — As her mother cheered from the sideline of a JV soccer game last fall in Bend, 7-year-old Naomi Vaughan went off to play in the nearby sagebrush surrounding the soccer fields. Naomi passed the time digging a hole in the dirt. After a while, something shiny caught her eye and she lifted it out of the soil to show her mother. She called it her “Moana rock,” because it reminded her of the spiral-shaped amulet from the animated Disney movie. Her mother, Melissa Vaughan, examined the relic and knew it wasn’t just some dusty rock.