I loved the original but wanted something smaller. So I redid the whole thing from the ground up to be slightly larger than bobble head sized and still use the LED strips that are available on Amazon.
The stand has a slot where you install an Arduino Nano/Mini for custom LEDs. In the pictures above we used a preconfigured LED strip that had a separate controller.
The author remixed this model.
~240mm (9.4-in.) tall without the star.
~280mm tall (11-in.) with the star on top. I glued it down using Gorilla super-glue sticks.
The star in my remix does not light up. The channel for the LED strips is 16mm wide.
Every STL for this project can be printed in one piece (used the Bambu P1S for reference). I used supports for the inside of the tree for the LED channel.