I designed my own christmas decoration in the shape of this tree look a like. You can put a light source inside it (make sure it's not hot) or use it as a vase. The height is 110mm.
How i designed it: https://youtu.be/GJ6lbMj3eY4 How i 3D printed it: https://youtu.be/NIrckVw8nxA
I printed a tree with 3.2mm thick walls scaled down to a 37.5% size, which results in a 1.2mm wall. I also printed a tree with 3.2mm thick walls scaled down to a 25% size, which results in a 0.8mm wall.
You can experiment with different sizes (wall thickness). The 100% scale version has a wall thickness of 3.2mm. I also added files with a wall thickness of 0.4mm, but it's probably more difficult to print. I used an extrusion width of 0.40mm.
Usage of any models from 3DParts4U will be at your own risk!
My PLA Simplify3D print settings: