This Conical Christmas Tree can be illuminated with a LED tealight. It accepts standard tealights up to 38mm. It comes in three sizes: 100mm, 150mm and 200mm high. It also comes in two finishes: regular and textured.
Warning! Do NOT put a tea candle with a real fire inside!
You will need to print two parts for each decoration: stump and tree body. Print the tree body in vase mode, print its stump in regular mode. Adjust settings to your liking. I printed mine using 0.2mm layers and 0.6mm nozzle.
If you choose to print textured versions, decrease perimeter speed, otherwise your 3D printer will jerk like crazy.
Put the stump on a flat surface. Turn on LED tealight and put it inside the stump. Put the tree on top of the stump.
I used OSHINE 35mm LED tealights from Amazon.