I had a bunch of LED strips laying around, along with the barrel plug connectors that attach to them, so I designed a nightlight with changeable lithophanes.

The cutout for the dc-power port fits the handful of adapters that I have, but there might be different sized styles aside from the ones I have.

I used this site to create the lithophane https://3dp.rocks/lithophane/ I don't recall all the settings I used, aside from it was a solid cylinder 100mm in diameter. The ouput from that site was then printed in vase/spiralize mode.

The adhesive on the back of the LEDs were not strong enough to hold them to the post, so I superglued them with a rubberband around the LEDs until the glue dried.

Any old 12v adapter should work just fine.

Here is the tinkercad design I used for the base along with the feet which I glued on the bottom

Creality

Ender 3

No

Yes

200

20

rotate the feet so the flat side is on your build plate.