This is my first try to make an sphere using a Phillotaxis algorithm in OpenSCAD but something went wrong with formulas and i get a 'egg'. Great!!, just add some spikes and i have a dragon egg!! Wooo!!!
After a few tests with some variations i've generated a bunch of eggs ready to print.
Developed as a decoration figure.
Printing the full figure yo may need supports and a brim to get a good grip on bed.
There's a little trick that i use when printing at big size:
1.- On your slicer (i'm using Cura but S3D or Slic3r can do it) move down on Z-axis the figure a 50% (half size). Create a Gcode for this (upper part).
2.- Rotate 180% (not flip) and save the gcode as bottom part.
Print the two Gcodes and stick them with some glue
Following this steps you'll be able to print big figures in 2 parts without supports.
Looks great on a shelf or a table.
Hope you enjoy it.