Dragon egg or Lavalamp, call it what you like

Just an experiment with a few 3D modeling concepts that turned out cool

Print the inner part of the shell with translucent material and the rest with a drank color
I used Amazozn basic translucent PLA and eSun Matte black.

Any LED strip should do but I have used this one: https://www.amazon.co.uk/gp/product/B08S41CMZ5

You can alternatively modify the core for something that suits your lighting needs
or the shell for something that suites your sense of decor better

Have fun