A fragmented skull suspended in a string frame.
Print at 0.24mm layer height without supports
If using Bambu Studio make sure your wall generator is set to Arachne
If using Cura make sure 'print thin walls' is checked.
If you want to print a larger version scale up in all axes to 125% and print at 0.3mm layer height.
The one in the photograph is the original model with the top 4 layers printed in black using a filament swap. I have also added an 'easy print' version with a simple, solid first layer if you think your printer might struggle with the complexity of the first layer.