Lithophane light box built around a battery operated LED fairy light. Assembly shown in photo sequence using the following sources:

Flat lithophane 72mm x 92.92mm x 7.5mm via www.lithophanemaker.com

YIHONG 2 Set Christmas Fairy Lights Battery Operated,16ft 50LED String Lights Remote Control Timer Twinkle String Lights 8 Modes Silver Wire Firefly Lights for Garden Party Indoor Decor-White via Amazon

Print instructions

Printed in PLA. 0.15mm for everything except the reflector where 0.30 is just fine. Case will glow with lighter filaments. eSun Cool White works great for the lithophane.