Redditor Medvin’s girlfriend is into The Legend of Zelda: Breath of the Wild, so he made her a replica of the Guardian Sword from the game. As you can see in the above photo, it glows beautifully. He used NeoPixels to add the soft lighting. He says:
It’s actually fully 3D printed using translucent PLA, the LED’s are NeoPixel LEDs.
Want to make one of your own? Follow our guide to create a 3D printed Guardian Sword: