This is a "lithophane"; a thin translucent porcelain night light, made using a lost art from the 1800's. When lit from behind, the light shining through the different thicknesses of the carving causes a highly detailed image to appear in front, almost magically.
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3D Cube Light Creative Cool Infinite Dodecahedron Nightlight Colorful Art Light USB Nightlight Girls
Aliexpress UK
Features: Experience the durability of our 3D Printed Relief Lamp Panel, crafted from high quality ABS material to ensure long performances. Suitable for enhancing your 3D printing projects.
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Motion Sensor Light Indoor LED Night Light Stick on Nightlight Battery Operated Lights for Hallway
Aliexpress UK
Features: Experience the durability of our 3D Printed Relief Lamp Panel, crafted from high quality ABS material to ensure long performances. Suitable for enhancing your 3D printing projects.
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3D Crystal Lights Lamp Glowing Planetary Galaxy Night Light Crystal Ball Night Lights Bedside Light
Aliexpress UK
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Multi Functional Camping Light Outdoor LED Night Riding light Rechargeable Flashlight Night Light
Aliexpress UK
Enlightened Art by Amy Brown. Fine Handcrafted Porcelain Transluscent Night Light Made in Irvine, California.
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3pcs Motion Sensor Light Indoor LED Night Light Stick on Nightlight Lights for Cabinet Hallway Stair
Aliexpress UK
Bisque Lithophane Christmas Village Electric Nightlight Deer Christmas Trees. No chips or cracks.
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3D Crystal Lights Lamp Glowing Planetary Galaxy Night Light Crystal Ball Night Lights Bedside Light
Aliexpress UK
Seagull Studios, Twas the Night Before Christmas, Lithophane Votive Porcelain. Only opened to take a picture. Measures 4.5" wide.
eBay
Motion Sensor Light Indoor LED Night Light Stick on Nightlight Battery Operated Lights for Hallway
Aliexpress UK
3D Crystal Lights Lamp Glowing Planetary Galaxy Night Light Crystal Ball Night Lights Bedside Light
Aliexpress UK