I used my i3 MK3S with MMU2S upgrade for this print however MMU2S is not a must.
As I wanted to get as close as possible to naturaly looking materials I used woodfill filament in combination with copper-looking filament.
All parts can be printed without support. If you have a MMU2S upgrade, import base_main part first and add additional candle parts to print them in different color. I also used same candle part colors for first 5 layers of the stars.
I strongly recommend using LED candles for decoration. As other material than ABS could be slowly deforming under the heat.
The author hasn't provided the model origin yet.