Printing:

You either: 

1. Cut it in half
2. Or you paint supports for the first layer of ,,spheres"

Layer heigh: 0.15 mm

Perimeters: 3, highly recomended

Infill: 50% Lightning (50 % may sound too much, but it is woth it.

Enjoy Xmas

(the hook can by done by paperclip)