I just printed this for life like tree plant holder my wife.
It is printed in PLA at 60% size with a 0.2mm layer height and 30% infill. I think I will print the next one with less infill as I have printed 4 shells all over. It was printed on a Prusa I3.
Here is the original files if you want to print one yourself:
https://www.thingiverse.com/thing:1836923
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