The model is a scanned version of a real Pinecone, edited with an opening on the bottom, to hang it from your Christmas Tree with a small hook. At a height of approximately 6.5 cm, the print looked great on my Tree. I uploaded a second, huge model if you'd like to scale it to fit your needs.
Prints without Support! I've chosen 10% Infill to save some weight, so even small branches are not bending too much.
Thanks to Scott Young for scanning!
The author hasn't provided the model origin yet.