This pendant has touched the shadow of the Moon.  On April 8, 2024, during a total eclipse of the sun, the students of Earth to Sky Calculus launched it to the stratosphere onboard a cosmic ray research balloon. The launch site was in the Texas path of totality near the historic town of Telegraph. Floating more than 36 km high, the locket spent 3 minutes and 45 seconds wrapped in lunar shadow while the Moon covered the face of the sun.
 
The 18K gold-plated locket is inscribed with the words "I love you to the Moon and back," and opens to hold a personal photo or other small item.
 
It comes with a greeting card showing the locket in flight and telling the story of its journey to the edge of space during the total eclipse.